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(from Latin ''acus,'' 'needle', and ''pungere,'' 'prick' or in [[Standard Mandarin]], zhēn jiǔ (needle therapy)
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''Acupuncture'' involves inserting and manipulating needles into '[[acupuncture point]]s' on the body. with the aim of restoring health and well-being, and is particularly good at treating [[pain]]. The definition of these points is standardized by the [[World Health Organization]] [http://www.wpro.who.int/publications/pub_9290611057.htm]. Acupuncture is thought to have originated in [[China]] and is most commonly associated with [[Traditional Chinese medicine]] (TCM). Other types of acupuncture (Japanese, Korean, and classical Chinese acupuncture) are practiced and taught throughout the world.
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'''Acupuncture''' (from Latin ''acus,'' 'needle', and ''pungere,'' 'prick'; or in [[Standard Mandarin]], zhēn jiǔ, meaning needle therapy) involves inserting and manipulating needles into '[[acupuncture point]]s' on the body with the aim of restoring health and well-being, and is believed to be effective at treating [[pain]] in certain cases. The definition of these points is standardized by the [[World Health Organization]].<ref>[http://www.wpro.who.int/publications/pub_9290611057.htm]</ref> Acupuncture is thought to have originated in China and is most commonly associated with [[traditional Chinese medicine]] (TCM). Other types of acupuncture (Japanese, Korean, and classical Chinese acupuncture) are practiced and taught throughout the world. Clinical trials have found evidence that acupuncture can be efficacious for [[headache]], [[low back pain]] and [[nausea]], but for most conditions there is too little reliable evidence to determine whether acupuncture is effective or not. The World Health Organisation ([[WHO]]), the National Center for Complementary and Alternative Medicine (NCCAM) of the [[National Institute of Health]] (NIH), the [[American Medical Association]] (AMA) and several government reports have also commented on the efficacy of acupuncture. There is general agreement that acupuncture is safe when administered by well-trained practitioners, and that more research is warranted.


Reviews of clinical trials according to the protocols of [[evidence-based medicine]] found evidence that acupunture can be efficacious for [[headache]], [[low back pain]] and [[nausea]], but for most conditions there is not enough reliable evidence to determine whether or not acupuncture is effective. The World Health Organisation ([[WHO]]), the [[National Center for Complementary and Alternative Medicine]] (NCCAM) of the [[National Institute of Health]] (NIH), the [[American Medical Association]] (AMA) and various government reports have also commented on the efficacy of acupuncture. There is general agreement that acupuncture is safe when administered by well-trained practitioners, and that further research is warranted.
===Acupuncture treatment in practice===
In western medicine, vascular [[headache]]s (the kind accompanied by throbbing veins in the temples) are typically treated with [[analgesics]] such as [[aspirin]] and/or by agents that dilate the affected blood vessels, but in acupuncture a common treatment is to stimulate points that are located roughly in the center of the webs between the thumbs and the palms, the ''hé gǔ'' points. These points are described as 'targeting the face and head'. The patient reclines, the points on each hand are sterilized with alcohol, and thin, disposable needles are inserted to a depth of 3-5 mm until the patient feels a 'twinge', often accompanied by a slight twitching of the area between thumb and hand. While the needles are in place, most patients report a pleasant 'tingling' and a sense of relaxation; they are left in place for 15-20 minutes while the patient rests, and are then removed.  


[[Image:hua_t08.jpg|thumb|right|250px|Acupuncture chart from Hua Shou (fl. 1340s, China [[Ming dynasty]]). This image from ''Shi si jing fa hui (Expression of the Fourteen Meridians).'' ([Tokyo] : Suharaya Heisuke kanko, Kyoho gan [1716]).]]
Patients often report one or more kinds of sensation associated with this treatment, sensations stronger than those felt by a patient not suffering from a vascular headache:  
# Extreme sensitivity to pain at the points in the webs of the thumbs.  
# In bad headaches, a feeling of nausea that persists for roughly the same period as the stimulation being administered to the webs of the thumbs.  
# Simultaneous relief of the headache.


==History==
Most modern acupuncturists use fine, disposable stainless steel needles (of diameter 0.18-0.51 mm), sterilized with [[ethylene oxide]] or by [[autoclave]]. The upper third of these needles is wound with a thicker wire (typically bronze), or covered in plastic, to stiffen the needle and provide a handle for the acupuncturist to grasp while inserting. The size and type of needle used, and the depth of insertion, depend on the acupuncture style being practiced.  
In China, acupuncture can perhaps be traced as far back as the 1st millennium BCE, and archeological evidence has been identified with the period of the [[Han dynasty]] (202 BCE to 220 CE). Forms of it are also described in the literature of [[traditional Korean medicine]] where it is called ''chimsul''. It is also important in [[Kampo]], the traditional medicine of Japan.  


Recent examinations of [[Ötzi]], a 5000-year-old [[mummy]] found in the Alps, identified over fifty tattoos on his body, some of which are on acupuncture points that would today be used to treat ailments Ötzi suffered from. Some scientists believe that this is evidence that practices similar to acupuncture were practiced elsewhere in Eurasia during the early bronze age. [http://www.ogka.at/aerzte/artikel/oetziLancet.htm], [http://www.thelancet.com/journals/lancet/article/PIIS0140673698122420/fulltext].
Warming an acupuncture point, typically by [[moxibustion]] (the burning of [[mugwort]]), is often used as a supplementary treatment. The Chinese term ''zhēn jǐu'', commonly used to refer to acupuncture, comes from ''zhen'' meaning 'needle', and ''jiu'' meaning 'moxibustion'. Moxibustion is still used to varying degrees among the schools of oriental medicine. One technique is to insert the needle at the desired acupuncture point, attach dried mugwort to the external end of an acupuncture needle, and then ignite the mugwort. The mugwort will then smolder for several minutes and conduct heat through the needle to the tissue surrounding the needle in the patient's body. Another common technique is to hold a glowing stick of moxa over the needles. Moxa is also sometimes burned at the skin surface, usually by applying an ointment to the skin to protect from burns.


The Chinese medical text that first describes acupuncture is The Yellow Emperor’s ''Classic of Internal Medicine (History of Acupuncture)'', compiled around 305–204 BCE. Some hieroglyphics have been found dating to 1000 BCE that may indicate an early use of acupuncture. Bian stones, sharp pointed stones used to treat diseases in ancient times have also been discovered in China; some scholars believe that the bloodletting for which these stones were probably used presages certain acupuncture techniques [http://www.redwingbooks.com/html/catalog/index.cfm/action_search/type_detail/InventoryKey_UndAcu/file_Chapter].
==History==
In China, acupuncture can perhaps be traced back to the 1st millennium BCE, and archeological evidence has been identified with the [[Han dynasty]] (202 BCE to 220 CE). Forms of it are also described in the literature of [[traditional Korean medicine]] where it is called ''chimsul'', and it is also important in [[Kampo]], the traditional medicine of Japan. [[Ötzi]], a 5000-year-old [[mummy]] found in the Alps, has more than fifty tattoos on his body, some of which are on acupuncture points that would today be used to treat ailments that Ötzi suffered from. Some scientists believe that this is evidence that practices similar to acupuncture were practiced elsewhere in Eurasia during the early bronze age.<ref>[http://www.ogka.at/aerzte/artikel/oetziLancet.htm], [http://www.thelancet.com/journals/lancet/article/PIIS0140673698122420/fulltext]</ref>. The Chinese medical text that first describes acupuncture is The Yellow Emperor’s ''Classic of Internal Medicine (History of Acupuncture)'', which was compiled around 305–204 BCE, but some hieroglyphics dating to 1000 BCE indicate a much earlier use of acupuncture. Bian stones, sharp pointed stones used to treat diseases in ancient times have also been discovered in China, and some scholars believe that the bloodletting for which these stones were probably used presages certain acupuncture techniques.<ref>[http://www.redwingbooks.com/html/catalog/index.cfm/action_search/type_detail/InventoryKey_UndAcu/file_Chapter]</ref>


The early Chinese Communist Party ridiculed classical forms of Chinese medicine, as superstitious, irrational and backward.<ref> Crozier RC (1968) 'Traditional medicine in modern China' Harvard University Press</ref> but Communist Party Chairman [[Mao]] later said that "Chinese medicine and pharmacology are a great treasure house and efforts should be made to explore them and raise them to a higher level"[http://www.healthy.net/scr/article.asp?ID=1708]. Representatives were sent across China to collect information about Chinese medicine. TCM is the formalized system that resulted; it combines acupuncture, Chinese herbal medicine, tui na and other modalities. After the [[Cultural Revolution]], TCM was incorporated into university medical curricula under the 'Three Roads' policy, whereby TCM, biomedicine and a synthesis of the two were all encouraged. After this time, forms of classical Chinese medicine other than TCM were outlawed, and some practitioners left China. The first forms of acupuncture to reach the USA were brought by non-TCM practitioners, many employing styles handed down in family lineages, or from master to apprentice (collectively known as 'Classical Chinese Acupuncture').
The early Chinese Communist Party ridiculed classical forms of Chinese medicine as superstitious and irrational<ref> Crozier RC (1968) 'Traditional medicine in modern China' Harvard University Press</ref> but Communist Party Chairman [[Mao]] declared that "Chinese medicine and pharmacology are a great treasure house and efforts should be made to explore them and raise them to a higher level"<ref>[http://www.healthy.net/scr/article.asp?ID=1708]</ref>. Representatives were sent across China to collect information about Chinese medicine. TCM is the formalized system that resulted, combining acupuncture, Chinese herbal medicine, tui na and other modalities. After the [[Cultural Revolution]], TCM was incorporated into university medical curricula under the 'Three Roads' policy, whereby TCM, biomedicine and a synthesis of the two were all encouraged. Subsequently, forms of classical Chinese medicine other than TCM were outlawed, and some practitioners left China. The first forms of acupuncture to reach the USA were brought by non-TCM practitioners, many employing styles handed down in family lineages, or from master to apprentice (collectively known as 'Classical Chinese Acupuncture').


==Traditional theory==
==Traditional theory==
[[Image:449px-Acupuncture1.jpg|thumb|200px|Traditional acupuncture involves the use of high-quality stainless steel, silver, or copper needles]]
Traditional acupuncture theory regards the body as having several 'systems of function' that are often associated with physical organs, although some, such as the 'triple heater' ([[San Jiao]], also called the 'triple burner') have no corresponding physical organ. Disease is understood as a loss of [[homeostasis]], and is treated by modifying the activity of one or more systems of function through the activity of needles, pressure, heat etc. on sensitive parts of the body traditionally called 'acupuncture points' in English, or ''xue'' (cavities) in Chinese. These acupoints used might not be in the same part of the body as the symptom. Some acupuncturists, particularly in Japan, reply on [[palpation]] for tender points, called 'ashi' ('that's it' or 'ouch!') points. The TCM theory is that such points work by stimulating the [[Meridian (Chinese medicine)|meridian system]] to bring relief by rebalancing [[Yin and yang|yin]], [[Yin and yang|yang]] and [[qi]] (also spelled "ch'i").  
The traditional theory of acupuncture treats the human body as a whole that involves several 'systems of function' that are often associated with physical organs, although some, such as the 'triple heater' ([[San Jiao]], also called the 'triple burner') have no corresponding physical organ. Disease is understood as a loss of [[homeostasis]], and is treated by modifying the activity of one or more systems of function through the activity of needles, pressure, heat etc. on sensitive parts of the body traditionally called 'acupuncture points' in English, or ''xue'' (cavities) in Chinese. This is referred to as treating 'patterns of disharmony'.


The acupoints used may not be in the same area of the body as the targeted symptom. Some acupuncturists, particularly in Japan, reply on [[palpation]] for tender points, called 'ashi' (signifying 'that's it' or 'ouch!') points. The TCM theory is that such points work by stimulating the [[Meridian (Chinese medicine)|meridian system]] to bring about relief by rebalancing [[Yin and yang|yin]], [[Yin and yang|yang]] and [[qi]] (also spelled "chi").  
Treatment of acupuncture points may be performed along the twelve main or eight extra meridians, located throughout the body, or on 'ashi' points. The twelve primary meridians run vertically, bilaterally, and symmetrically and every channel corresponds to and connects internally with one of the twelve [[Zang Fu]] ('organs'). Ten of the main meridians are named after organs of the body (Heart, Liver, etc.), and two after so-called body functions (Heart Protector or [[Pericardium]], and ''San Jiao''; note that the meridians are capitalized to avoid confusion with a physical organ; e.g.  the 'Heart meridian' not the 'heart meridian'). Of the eight extra meridians, two have acupuncture points of their own, and six are 'activated' using a master and couple point technique which involves needling the acupuncture points on the twelve main meridians that correspond to the particular extra meridian. The two most important of the 'extra' meridians are situated on the midline of the anterior and posterior aspects of the trunk and head. This means that there are six yin and six yang channels; three yin and three yang channels on each arm and each leg.


Treatment of acupuncture points may be performed along the twelve main or eight extra meridians, located throughout the body, or on 'ashi' points. Of the eight extra meridians, only two have acupuncture points of their own, the other six are 'activated' by using a master and couple point technique which involves needling the acupuncture points on the twelve main meridians that correspond to the particular extra meridian. Ten of the main meridians are named after organs of the body (Heart, Liver, etc.), and the other two are named after so-called body functions (Heart Protector or [[Pericardium]], and ''San Jiao''). The meridians are capitalized to avoid confusion with a physical organ (for example, we write the 'Heart meridian' as opposed to the 'heart meridian'). The two most important of the eight 'extra' meridians are situated on the midline of the anterior and posterior aspects of the trunk and head. The twelve primary meridians run vertically, bilaterally, and symmetrically and every channel corresponds to and connects internally with one of the twelve [[Zang Fu]] ('organs'). This means that there are six yin and six yang channels. There are three yin and three yang channels on each arm and on each leg.
Chinese theory holds that acupuncture works by normalizing the flow of ''qi'' through the body; qi is a concept that pervades Chinese philosophy and is commonly translated as 'vital energy'. Qi moves along an internal and an external pathway; the external pathway is what is normally shown on an acupuncture chart, and is relatively superficial &mdash; all the acupuncture points of a channel lie on its external pathway. The internal pathways are where qi enters the body cavities and the related Zang-Fu organs. The superficial pathways of the twelve channels describe three complete circuits of the body. Pain or illnesses are treated by attempting to remedy local or systemic accumulations or deficiencies of qi. Pain is thought to indicate stagnation of the flow of qi, and an axiom of acupuncture is ''no pain, no blockage; no blockage, no pain''.


The movement of qi through each of the twelve channels is comprised of an internal and an external pathway. The external pathway is what is normally shown on an acupuncture chart and it is relatively superficial. All the acupuncture points of a channel lie on its external pathway. The internal pathways are the deep course of the channel where it enters the body cavities and related Zang-Fu organs. The superficial pathways of the twelve channels describe three complete circuits of the body.
Chinese medical theory holds that acupuncture works by normalizing the free flow of ''qi'' throughout the body; qi is a difficult-to-translate concept that pervades Chinese philosophy and is commonly translated as 'vital energy'. Pain or illnesses are treated by attempting to remedy local or systemic accumulations or deficiencies of qi. Pain is considered to indicate stagnation of the flow of qi, and an axiom of acupuncture is ''no pain, no blockage; no blockage, no pain''.
Many patients claim to experience the sensations of stimulus known in Chinese as 'deqi' ('arrival of the qi'). This was considered to be evidence of locating the desired point.  
Many patients claim to experience the sensations of stimulus known in Chinese as 'deqi' ('arrival of the qi'). This was considered to be evidence of locating the desired point.  


The acupuncturist decides which points to treat by observing and questioning the patient. In TCM, there are four diagnostic methods: inspection, auscultation and olfaction, inquiring, and palpation. ''Inspection'' focuses on the face and particularly the tongue, including analysing its size, shape, tension, color and coating, and the absence or presence of teeth marks around the edge. ''Auscultation'' and ''olfaction'' refer, respectively, to listening for particular sounds (such as wheezing) and attending to unusual body odor. ''Inquiring'' focuses on the 'seven inquiries': chills and fever; perspiration; appetite, thirst and taste; defecation and urination; pain; sleep; and [[menses]] and [[leukorrhea]]. ''Palpation'' includes feeling the body for tender 'ashi' points, and palpation of the left and right radial pulses at two levels of pressure (superficial and deep) and three positions (immediately proximal to the wrist crease, and one and two fingers' breadth proximally, usually palpated with the index, middle and ring fingers). Other forms of acupuncture employ additional diagnosic techniques. In many forms of classical Chinese acupuncture, as well as Japanese acupuncture, palpation of the muscles and the ''hara'' (abdomen) are central to diagnosis.
===Diagnosis===
The acupuncturist decides which points to treat by observing and questioning the patient, much as a Western physician takes a [[medical history]], followed by examination based on inquiry and observation.


===TCM perspective on treatment of disease===
''Inquiring'' focuses on the 'seven inquiries': chills and fever; perspiration; appetite, thirst and taste; defecation and urination; pain; sleep; and [[menses]] and [[leukorrhea]].
Acupuncture has been used to treat a number of conditions. Typically, acupuncture treatment is highly-individualized and based on subjective and intuitive impressions, rather than on controlled scientific research. [http://www.medicalacupuncture.org/aama_marf/journal/vol12_1/evidence.html]. Although TCM is based on the treatment of "patterns of disharmony" rather than biomedical diagnoses, practitioners familiar with both systems have commented on relationships between the two. A given TCM pattern of disharmony may be reflected in a certain range of biomedical diagnoses: thus, the pattern called ''Deficiency of Spleen Qi'' could manifest as chronic fatigue, diarrhea or uterine prolapse.  Likewise, a population of patients with a given biomedical diagnosis may have varying TCM patterns. These observations are encapsulated in the TCM aphorism ''One disease, many patterns; one pattern, many diseases''. <ref>(Kaptchuk, 1982)</ref>


===Criticism of TCM theory===
In TCM, there are several physical diagnostic methods, including: ''inspection, auscultation and olfaction, inquiring,'' and ''palpation''.
TCM theory predates use of the [[scientific method]], and has been criticised on that basis. A report for [[CSICOP]] said: "A few Chinese scientists we met maintained that although qi is merely a metaphor, it is still a useful physiological abstraction (e.g. that the related concepts of Yin and Yang parallel modern scientific notions of endocrinologic and metabolic feedback mechanisms). They see this as a useful way to unite Eastern and Western medicine. Their more hard-nosed colleagues quietly dismissed qi as bearing no tangible relationship to modern physiology and medicine."[http://www.csicop.org/si/9609/china.html]


In 1995, George A. Ulett, Clinical Professor of Psychiatry, University of Missouri School of Medicine, stated that "devoid of metaphysical thinking, acupuncture becomes a rather simple technique that can be useful as a nondrug method of pain control." He believes that the traditional Chinese variety is primarily a placebo treatment, but electrical stimulation of about 80 acupuncture points has been proven useful for pain control.[http://www.quackwatch.org/01QuackeryRelatedTopics/acu.html]
''Inspection'' focuses on the face and particularly the tongue, including analysing its size, shape, tension, color and coating, and the absence or presence of teeth marks around the edge.


Ted Kaptchuk, author of ''The Web That Has No Weaver'', refers to acupuncture as "prescientific".  About TCM theory, Kaptchuk says: "These ideas are cultural and speculative constructs that provide orientation and direction for the practical patient situation. There are few secrets of Oriental wisdom buried here. When presented outside the context of Chinese civilization, or of practical diagnosis and therapeutics, these ideas are fragmented and without great significance. The 'truth' of these ideas lies in the way the physician can use them to treat real people with real complaints."
''Auscultation'' involves listening for particular sounds (such as wheezing).


According to the NIH consensus statement on acupuncture:
''Olfaction''  refers to assessing to unusual body odor. This remains a technique in Western medical examination; diabetic emergencies, certain infections, and other conditions do carry specific smells.
:''Despite considerable efforts to understand the anatomy and physiology of the 'acupuncture points', the definition and characterization of these points remains controversial. Even more elusive is the basis of some of the key traditional Eastern medical concepts such as the circulation of qi, the meridian system, and the five phases theory, which are difficult to reconcile with contemporary biomedical information but continue to play an important role in the evaluation of patients and the formulation of treatment in acupuncture. ''[http://consensus.nih.gov/1997/1997Acupuncture107html.htm]
''Palpation'' includes feeling the body for tender 'ashi' points, and palpating the left and right radial pulses at two levels of pressure (superficial and deep) and three positions (immediately proximal to the wrist crease, and one and two fingers' breadth proximally, usually palpated with the index, middle and ring fingers).


==Legal and political status==
Other forms of acupuncture use additional diagnostic techniques. In many forms of classical Chinese acupuncture, as well as Japanese acupuncture, palpation of the muscles and the ''hara'' (abdomen) are important in diagnosis.
Acupuncturists may also practice herbal medicine or tui na, or may be medical acupuncturists, who are trained in [[allopathic medicine]] but also practice acupuncture in a simplified form. License is regulated by the state or province in many countries, and often requires passing a [[board exam]]. In the USA, acupuncturists are generally known as 'Licensed Acupuncturists' (L.Ac.). The 'Diplomate of Acupuncture' (Dipl. Ac.) means that the holder is board-certified by the [http://www.nccaom.org/ National Certification Commission for Acupuncture and Oriental Medicine]. Professional degrees include 'M.Ac.' (Master of Acupuncture), 'M.S.Ac.' (Master of Science in Acupuncture), 'M.S.O.M' (Master of Science in Oriental Medicine), 'M.A.O.M.' (Master of Acupuncture and Oriental Medicine). 'O.M.D.' signifies Oriental Medical Doctor, and may be used by graduates of Chinese medical schools, or by American graduates of postgraduate programs, but the the OMD degree is not currently recognized by the [http://www.acaom.org/ Accreditation Commission for Acupuncture and Oriental Medicine] which accredits American educational programs in acupuncture. Other healthcare providers such as physicians, dentists and chiropractors sometimes also practice acupuncture, though they may often receive less training than L.Ac.'s, who generally receive 2500-4000 hours of training in Chinese medical theory, acupuncture, and basic biosciences. Some also receive training in Chinese herbology and/or bodywork. The amount of training required for healthcare providers who are not L.Ac.'s varies from none to a few hundred hours, and in Hawaii the practice of acupuncture requires full training as a licensed acupuncturist. [http://www.nccaom.org/aboutus.htm The National Certification Commission for Acupuncture and Oriental Medicine] tests practitioners to ensure they are knowledgeable about Chinese medicine and appropriate sterile technique. Many states require this test for licensing, but each has its own laws and requirements. In some, acupuncturists are required to work with an MD in a subservient relationship. Over fifteen million Americans in 1994 tried acupuncture, and in 2005 a poll of American doctors showed that 60% of them believe acupuncture was at least somewhat effective, with the percentage increasing to 75% if acupuncture is considered as a complement to conventional treatment [http://publish.hcdhealth.com/P1007/]. In 1996, the [[Food and Drug Administration]] changed the status of acupuncture needles from [[Medical devices#Classifications|Class III]] to [[Medical devices#Classifications|Class II]] [[medical device]]s, meaning that needles are regarded as safe and effective when used appropriately by licensed practitioners [http://www.fda.gov/fdac/departs/596_upd.html] [http://www.fda.gov/cdrh/pmapage.html].


In Australia, the legalities of practicing acupuncture also vary by state. In 2000, an independent government agency, The Chinese Medicine Registration Board of Victoria [http://www.cmrb.vic.gov.au/], was established to oversee the practice of Chinese Herbal Medicine and Acupuncture in the state of Victoria, aiming to ensure that only appropriately experienced or qualified practitioners are registered to practice Chinese Medicine. The Parliamentary Committee on the Health Care Complaints Commission in the Australian state of New South Wales commissioned a report investigating TXM practice. [http://www.parliament.nsw.gov.au/prod/parlment/committee.nsf/0/CA78E168CE1B6FA2CA2570B400200A34] They recommended the introduction of a government appointed registration board that would regulate the profession by restricting use of the titles 'acupuncturist', 'Chinese herbal medicine practitioner' and 'Chinese medicine practitioner'. The aim of registration is to protect the public  by ensuring a high baseline level of competency and education of registered acupuncturists, enforcing guidelines regarding continuing professional education and investigating complaints of practitioner conduct. Victoria is the only state of Australia with an operational registration board. [http://www.cmrb.vic.gov.au] Acupuncturists in NSW are bound by the guidelines in the Public Health (Skin Penetration) Regulation 2000 [http://www.health.nsw.gov.au/public-health/ehb/general/skinpen/skin_pen_reg_2000.pdf]which is enforced at local council level.
===TCM perspective on treatment of disease===
Acupuncture has been used to treat many different conditions. Typically, treatment is highly-individualized and based on subjective and intuitive impressions, rather than on controlled scientific research.<ref>[http://www.medicalacupuncture.org/aama_marf/journal/vol12_1/evidence.html]</ref>.TCM is based on the treatment of "patterns of disharmony" rather than biomedical diagnoses, and a TCM pattern of disharmony may be associated with a range of medical diagnoses: for example, ''Deficiency of Spleen Qi'' could manifest as chronic fatigue, diarrhea or uterine prolapse. Conversely, two patients with the same medical diagnosis might have different TCM patterns. These observations are encapsulated in the TCM aphorism ''One disease, many patterns; one pattern, many diseases''.<ref>Kaptchuk, Ted (1983) ''The Web That Has No Weaver''  Congdon and Weed, ISBN 0-86553-109-92</ref>


==Clinical practice==
===Criticism of TCM theory===
[[Image:Needles3.jpg|center|500px]]
TCM theory predates use of the [[scientific method]]. According to a report for [[CSICOP]], some Chinese scientists maintain that qi is still a useful metaphor, and the concepts of Yin and Yang parallel scientific notions of endocrinological and metabolic feedback mechanisms. while others dismiss qi as having no relationship to modern physiology and medicine.<ref>[http://www.csicop.org/si/9609/china.html]</ref> Ted Kaptchuk, author of ''The Web That Has No Weaver'', refers to the theory of acupuncture as 'prescientific' ideas, that are essentially cultural and speculative constructs that have little significance outside the context of Chinese civilization, or outside a practical clincal context. Their 'truth', he says, lies in how they are used to treat "real people with real complaints".
Most modern acupuncturists use fine, disposable stainless steel needles (of diameter 0.18-0.51 mm), sterilized with [[ethylene oxide]] or by [[autoclave]]. The upper third of these needles is wound with a thicker wire (typically bronze), or covered in plastic, to stiffen the needle and provide a handle for the acupuncturist to grasp while inserting. The size and type of needle used, and the depth of insertion, depend on the acupuncture style being practiced.  


Warming an acupuncture point, typically by [[moxibustion]] (the burning of [[mugwort]]), is a different treatment to acupuncture itself and is often used as a supplementary treatment. The Chinese term ''zhēn jǐu'', commonly used to refer to acupuncture, comes from ''zhen'' meaning 'needle', and ''jiu'' meaning 'moxibustion'. Moxibustion is still used in the 21st century to varying degrees among the schools of oriental medicine. For example, one technique is to insert the needle at the desired acupuncture point, attach dried mugwort to the external end of an acupuncture needle, and then ignite the mugwort. The mugwort will then smolder for several minutes and conduct heat through the needle to the tissue surrounding the needle in the patient's body. Another common technique is to hold a large glowing stick of moxa over the needles. Moxa is also sometimes burned at the skin surface, usually by applying an ointment to the skin to protect from burns.
According to the NIH consensus statement on acupuncture, "Despite considerable efforts to understand the anatomy and physiology of the 'acupuncture points', the definition and characterization of these points remains controversial. Even more elusive is the basis of some of the key traditional Eastern medical concepts such as the circulation of qi, the meridian system, and the five phases theory, which are difficult to reconcile with contemporary biomedical information but continue to play an important role in the evaluation of patients and the formulation of treatment in acupuncture."<ref>NIH consensus statement.[http://consensus.nih.gov/1997/1997Acupuncture107html.htm]</ref>


===An example of acupuncture treatment===
==Legal and political status==
[[Image:Acupuncture.jpg|thumb|275px|right|Acupuncture]]
In the USA, acupuncturists are generally known as 'Licensed Acupuncturists' (L.Ac.). The 'Diplomate of Acupuncture' (Dipl. Ac.) means that the holder is board-certified by the [http://www.nccaom.org/ National Certification Commission for Acupuncture and Oriental Medicine]. Professional degrees include 'M.Ac.' (Master of Acupuncture), 'M.S.Ac.' (Master of Science in Acupuncture), 'M.S.O.M' (Master of Science in Oriental Medicine), 'M.A.O.M.' (Master of Acupuncture and Oriental Medicine). 'O.M.D.' signifies Oriental Medical Doctor, and may be used by graduates of Chinese medical schools, or by American graduates of postgraduate programs, but is not currently recognized by the [http://www.acaom.org/ Accreditation Commission for Acupuncture and Oriental Medicine] which accredits American educational programs. Physicians, dentists and chiropractors sometimes also practice acupuncture, though they often receive less training than L.Ac.'s, who generally receive 2500-4000 hours of training in Chinese medical theory, acupuncture, and basic biosciences. Some are also trained in Chinese herbology and/or bodywork. The training required for healthcare providers who are not L.Ac.'s varies from none to a few hundred hours, and in Hawaii the practice of acupuncture requires full training as a licensed acupuncturist. The National Certification Commission for Acupuncture and Oriental Medicine<ref>[http://www.nccaom.org/aboutus.htm The National Certification Commission for Acupuncture and Oriental Medicine]</ref> tests practitioners to ensure they are knowledgeable aboutChinese medicine and sterile technique. Many states require this test for licensing, but each has its own requirements. In some, acupuncturists must work with an MD. In 1996, the [[Food and Drug Administration]] changed the status of acupuncture needles from [[Medical devices#Classifications|Class III]] to [[Medical devices#Classifications|Class II]] [[medical device]]s, meaning that needles are regarded as safe and effective when used appropriately by licensed practitioners.<ref>[http://www.fda.gov/fdac/departs/596_upd.html] [http://www.fda.gov/cdrh/pmapage.html].</ref>
In western medicine, vascular headaches (the kind accompanied by throbbing veins in the temples) are typically treated with analgesics such as aspirin and/or by the  agents such as niacin that dilate the affected blood vessels, but in acupuncture a common treatment is to stimulate points that are located roughly in the center of the webs between the thumbs and the palms, the ''hé gǔ'' points. These points are described as 'targeting the face and head'. The patient reclines, the points on each hand are sterilized with alcohol, and then thin, disposable needles are inserted to a depth of approximately 3-5 mm until the patient feels a 'twinge', often accompanied by a slight twitching of the area between the thumb and hand. Most patients report a pleasurable tingling sensation and a sense of relaxation while the needles are in place. The needles are retained for 15-20 minutes while the patient rests, and then removed.  


In clinical practice, patients often report one or more kinds of sensation associated with this treatment, sensations stronger than those felt by a patient not suffering from a vascular headache:
In Australia, the legalities also vary by state. In 2000, an independent government agency, The Chinese Medicine Registration Board of Victoria [http://www.cmrb.vic.gov.au/], was established to oversee Chinese Herbal Medicine and Acupuncture in the state of Victoria, aiming to ensure that only appropriately experienced or qualified practitioners can practice Chinese Medicine. The Parliamentary Committee on the Health Care Complaints Commission in New South Wales commissioned a report investigating TCM practice. [http://www.parliament.nsw.gov.au/prod/parlment/committee.nsf/0/CA78E168CE1B6FA2CA2570B400200A34] They recommended the introduction of a government appointed registration board that would regulate the profession by restricting use of the titles 'acupuncturist', 'Chinese herbal medicine practitioner' and 'Chinese medicine practitioner'. The aim of registration is to ensure the competency of registered acupuncturists, to enforce guidelines regarding continuing professional education and to investigate complaints of misconduct. Victoria is the only state of Australia with an operational registration board.<ref>[http://www.cmrb.vic.gov.au]</ref> Acupuncturists in NSW are bound by the guidelines in the Public Health (Skin Penetration) Regulation 2000 which is enforced at local council level.<ref>[http://www.health.nsw.gov.au/public-health/ehb/general/skinpen/skin_pen_reg_2000.pdf Public Health (Skin Penetration) Regulation 2000]</ref>
# Extreme sensitivity to pain at the points in the webs of the thumbs.  
# In bad headaches, a feeling of nausea that persists for roughly the same period as the stimulation being administered to the webs of the thumbs.  
# Simultaneous relief of the headache.


==Scientific theories and mechanisms of action==
==Scientific theories and mechanisms of action==
The [[gate control theory of pain]], developed by [[Ronald Melzack]] and Patrick Wall, proposed that pain perception is not simply a direct result of activating [[pain fibers]], but involves the synthesis of many different types of sensory information some of which can block (or 'gate') the signals from the pain receptors. Accordingly, the perception of pain can be altered by a number of means physiologically, psychologically and pharmacologically. <ref> Wall PD, Melzack R (1962) On nature of cutaneous sensory mechanisms, ''Brain'' 85:331; Melzack R, Wall PD (1965) Pain mechanisms: A new theory, ''Science'' 150:171-9; Melzack R (1976) Acupuncture and pain mechanisms ''Anaesthesist'' 25:204-7</ref>  
The [[gate control theory of pain]], developed by [[Ronald Melzack]] and Patrick Wall, proposed that pain perception is not simply a direct result of activating [[pain fibers]], but involves the synthesis of many different types of sensory information some of which can block (or 'gate') the signals from the pain receptors. Accordingly, the perception of pain can be altered by a number of means physiologically, psychologically and pharmacologically.<ref>'''Gate theory of pain'''
:Wall PD, Melzack R (1962) On nature of cutaneous sensory mechanisms, ''Brain'' 85:331
:Melzack R, Wall PD (1965) Pain mechanisms: A new theory, ''Science'' 150:171-9   
:Melzack R (1976) Acupuncture and pain mechanisms ''Anaesthesist'' 25:204-7</ref>  


Pain transmission can also be modulated at many levels in the brain, including the [[periaqueductal gray]], [[thalamus]], and the feedback pathways from the [[cortex]] to the thalamus. Each of these brain structures processes different aspects of the pain from experiencing emotional pain to the perception of what the pain feels like, to the recognition of how harmful the pain is, and to localizing where the pain is coming from. Pain blockade at some of these locations is mediated by [[neurohormone]]s, especially those that bind to [[opioid receptor]]s. The opiate drug [[morphine]] relieves pain by acting on the same type of opioid receptor as endorphins and enkephalins, naturally occurring opiate-like substances that the brain produces and releases.
Pain transmission can be modulated at many levels in the brain, including the [[periaqueductal gray]], [[thalamus]], and the feedback pathways from the [[cerebral cortex|cortex]] to the thalamus. Each of these brain structures processes different aspects of the pain &mdash; from experiencing emotional pain to the perception of what the pain feels like, to the recognition of how harmful the pain is, and to localizing where the pain is coming from. Pain blockade at some of these locations is mediated by [[neurohormone]]s, especially those that bind to [[opioid receptor]]s. The opiate drug [[morphine]] relieves pain by acting on the same type of opioid receptor as [[endorphin]]s and [[enkephalin]]s, naturally occurring opiate-like substances that the brain produces and releases.


Most importantly for understanding how acupuncture might work, it was shown that mild sensory stimulation (rubbing) relieves the feeling of pain because the activity of 'touch' receptors can partly inhibit the activity of pain receptors. Accordingly, it was recognised that this might provide a basis for understanding how one type of stimulation (by acupuncture needles) might block pain signals.
Most importantly for understanding how acupuncture might work, it was shown that mild sensory stimulation (rubbing) relieves the feeling of pain because the activity of 'touch' receptors can partly inhibit the activity of pain receptors. Accordingly, it was recognised that this might provide a basis for understanding how one type of stimulation (by acupuncture needles) might block pain signals.


==Research into efficacy==
==Research into efficacy==
There is scientific agreement that an [[evidence-based medicine]] (EBM) framework should be used to assess health outcomes and that systematic reviews with strict protocols are important.<ref>In practice, EBM does not demand that doctors ignore research outside its 'top-tier' criteria [http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=32159].</ref> Organisations such as the [[Cochrane Collaboration]] publish such reviews. For many conditions, the Cochrane Collaboration concluded there is insufficient evidence that acupuncture is beneficial, often because of the paucity and poor quality of the research and that further research would be needed to support claims for efficacy <ref>For the following conditions, the Cochrane Collaboration concluded there is insufficient evidence that acupuncture is beneficial: [http://www.cochrane.org/reviews/en/ab000009.html Giving up smoking]
In 1995, George A. Ulett, Clinical Professor of Psychiatry at the University of Missouri School of Medicine, stated that "devoid of metaphysical thinking, acupuncture becomes a rather simple technique that can be useful as a nondrug method of pain control." He believes that the traditional Chinese variety is mainly a placebo treatment, but electrical stimulation of about 80 acupuncture points proved useful for pain control.<ref>[http://www.quackwatch.org/01QuackeryRelatedTopics/acu.html]</ref> Sham acupuncture has been found to be as effective as real acupuncture for treating migraines. According to a large German study in 2006: “Treatment outcomes for migraine do not differ between patients treated with sham acupuncture, verum acupuncture, or standard therapy.”<ref>[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16545747][http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=16646722]</ref>
[http://www.cochrane.org/reviews/en/ab000008.html Chronic asthma]
[http://www.cochrane.org/reviews/en/ab002914.html Bell's palsy]
[http://www.cochrane.org/reviews/en/ab005319.html Shoulder pain]
[http://www.cochrane.org/reviews/en/ab003527.html Lateral elbow pain]
[http://www.cochrane.org/reviews/en/ab003317.html Acute stroke]
[http://www.cochrane.org/reviews/en/ab003788.html Rheumatoid arthritis]
[http://www.cochrane.org/reviews/en/ab004046.html Depression]
[http://www.cochrane.org/reviews/en/ab002962.html Induction of labour]
:For [[low back pain]], a Cochrane review (2006) of 35 RCTs covering 2861 patients concluded "There is insufficient evidence to make any recommendations about acupuncture or dry-needling for acute low-back pain. For chronic low-back pain, results show that acupuncture is more effective for pain relief than no treatment or sham treatment, in measurements taken up to three months. The results also show that for chronic low-back pain, acupuncture is more effective for improving function than no treatment, in the short-term. Acupuncture is not more effective than other conventional and 'alternative' treatments. When acupuncture is added to other conventional therapies, it relieves pain and improves function better than the conventional therapies alone. However, effects are only small."[http://www.cochrane.org/reviews/en/ab001351.html] A review in ''Annals of Internal Medicine'' (2005) reached  similar conclusions [http://www.annals.org/cgi/content/abstract/142/8/651]


For [[headache]], Cochrane concluded (2006) that "evidence supports the value of acupuncture for the treatment of idiopathic headaches." [http://www.cochrane.org/reviews/en/ab001218.html]. For [[nausea]] and [[vomiting]],  the Cochrane review (2006) concluded that "compared with anti emetic prophylaxis, P6 acupoint stimulation seems to reduce the risk of nausea but not vomiting" [http://www.cochrane.org/reviews/en/ab003281.html]. Cochrane also stated: "Electroacupuncture is effective for first day vomiting after chemotherapy, but trials considering modern antivomiting drugs are needed." [http://www.cochrane.org/reviews/en/ab002285.html].Bandolier said "P6 acupressure in two studies showed 52% of patients with control having a success, compared with 75% with P6 acupressure"([http://www.jr2.ox.ac.uk/bandolier/band59/b59-4.html 1999)] and that one in five adults, but not children showed reduction in early postoperative nausea([http://www.jr2.ox.ac.uk/bandolier/band71/b71-9.html 2000]) </ref>
There is scientific agreement that an [[evidence-based medicine]] (EBM) framework should be used to assess health outcomes and that systematic reviews with strict protocols are important<ref>[http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=32159]</ref>. Organisations such as the [[Cochrane Collaboration]] publish such reviews. While the Cochrane has concluded that acupuncunture may not be effective for pain,<ref name="pmid19174438">{{cite journal |author=Madsen MV ''et al.'' |title=Acupuncture treatment for pain: systematic review of randomised clinical trials with acupuncture, placebo acupuncture, and no acupuncture groups |journal=BMJ |volume=338 |issue= |pages=a3115 |year=2009 |pmid=19174438 |doi= |url=http://bmj.com/cgi/pmidlookup?view=long&pmid=19174438 |issn=}}</ref> for many conditions, it concluded there is insufficient evidence that acupuncture is beneficial, often because of the paucity and poor quality of the research.


In 1997, the NIH issued a [[Consensus (medical)|consensus statement]] on acupuncture; it said <ref>http://nccam.nih.gov/health/acupuncture/ Get the Facts, Acupuncture], (2006). National Institute of Health.</ref>
'''Efficacy'''
:''Preclinical studies have documented acupuncture's effects, but they have not been able to fully explain how acupuncture works within the framework of the Western system of medicine that is commonly practiced in the United States.''
:For the following conditions, the Cochrane Collaboration concluded there is insufficient evidence that acupuncture is beneficial:
[http://www.cochrane.org/reviews/en/ab000009.html Giving up smoking]
[http://www.cochrane.org/reviews/en/ab000008.html Chronic asthma]
[http://www.cochrane.org/reviews/en/ab002914.html Bell's palsy]
[http://www.cochrane.org/reviews/en/ab005319.html Shoulder pain]
[http://www.cochrane.org/reviews/en/ab003527.html Lateral elbow pain]
[http://www.cochrane.org/reviews/en/ab003317.html Acute stroke]
[http://www.cochrane.org/reviews/en/ab003788.html Rheumatoid arthritis]
[http://www.cochrane.org/reviews/en/ab004046.html Depression]
[http://www.cochrane.org/reviews/en/ab002962.html Induction of labour]
:For [[low back pain]], a Cochrane review (2006) of 35 RCTs covering 2861 patients concluded "There is insufficient evidence to make any recommendations about acupuncture or dry-needling for acute low-back pain. For chronic low-back pain, results show that acupuncture is more effective for pain relief than no treatment or sham treatment, in measurements taken up to three months. The results also show that for chronic low-back pain, acupuncture is more effective for improving function than no treatment, in the short-term. Acupuncture is not more effective than other conventional and 'alternative' treatments. When acupuncture is added to other conventional therapies, it relieves pain and improves function better than the conventional therapies alone. However, effects are only small."<ref>[http://www.cochrane.org/reviews/en/ab001351.html]</ref>
:A review in ''Annals of Internal Medicine'' (2005) reached similar conclusions<ref>''Annals of Internal Medicine''[http://www.annals.org/cgi/content/abstract/142/8/651] </ref>
:For [[headache]], Cochrane concluded (2006) that "evidence supports the value of acupuncture for the treatment of idiopathic headaches."<ref>[http://www.cochrane.org/reviews/en/ab001218.html].</ref>
:A Cochrane review (2006) concluded that "compared with anti emetic prophylaxis, P6 acupoint stimulation seems to reduce the risk of nausea but not vomiting"<ref>[http://www.cochrane.org/reviews/en/ab003281.html]</ref>.
:Cochrane also stated: "Electroacupuncture is effective for first day vomiting after chemotherapy, but trials considering modern antivomiting drugs are needed."<ref>[http://www.cochrane.org/reviews/en/ab002285.html]</ref>
:Bandolier said "P6 acupressure in two studies showed 52% of patients with control having a success, compared with 75% with P6 acupressure"<ref>[http://www.jr2.ox.ac.uk/bandolier/band59/b59-4.html 1999)]</ref> and that one in five adults, but not children showed reduction in early postoperative nausea<ref>([http://www.jr2.ox.ac.uk/bandolier/band71/b71-9.html 2000])</ref>
In 1997, the NIH issued a [http://nccam.nih.gov/health/acupuncture/ consensus statement] on acupuncture; it said "Preclinical studies have documented acupuncture's effects, but they have not been able to fully explain how acupuncture works within the framework of the Western system of medicine." The statement declared that acupuncture is widely practiced in the USA, and there is enough evidence of its value to expand its use into conventional medicine and to encourage further studies, although many studies have provided equivocal results because of design, sample size, and other factors.<ref>[http://consensus.nih.gov/1997/1997Acupuncture107html.htm]</ref>, and said that the data supporting acupuncture are as strong as those for many accepted Western medical therapies. It concluded:
:''... promising results have emerged, for example, showing efficacy of acupuncture in adult postoperative and chemotherapy nausea and vomiting and in postoperative dental pain. There are other situations such as addiction, stroke rehabilitation, headache, menstrual cramps, tennis elbow, fibromyalgia, myofascial pain, osteoarthritis, low back pain, carpal tunnel syndrome, and asthma, in which acupuncture may be useful as an adjunct treatment or an acceptable alternative or be included in a comprehensive management program.''


The statement declared that there is enough evidence of acupuncture's value to expand its use into conventional medicine and to encourage further studies of its physiology and clinical value [http://consensus.nih.gov/1997/1997Acupuncture107html.htm], and said that the data in support of acupuncture are as strong as those for many accepted Western medical therapies. The statement concluded:
A common criticism of studies that seem to show that acupuncture is effective is that most have methodological weaknesses. Many are not double blinded and are not randomised. However, in acupuncture it is hard to design studies in which the person providing treatment is blinded as to the treatment being given. The same problem arises in double-blinding procedures used in virtually all surgical procedures, dentistry, physical therapy, etc.; the [http://consensus.nih.gov/1997/1997Acupuncture107html.htm NIH Consensus Statement] notes such issues with regard to [[Sham (falsity)|sham]] acupuncture, a technique often used in studies purporting to be double-blinded. See also [[Evidence-based medicine#Criticism of evidence-based medicine|Criticism of evidence-based medicine]]. Tonelli, a critic of EBM, argues that [[complementary and alternative medicine]] (CAM) cannot be EBM-based unless the definition of evidence is changed.<ref>[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11739043&query_hl=2&itool=pubmed_docsum]</ref>.
:''Acupuncture as a therapeutic intervention is widely practiced in the United States. While there have been many studies of its potential usefulness, many of these studies provide equivocal results because of design, sample size, and other factors. The issue is further complicated by inherent difficulties in the use of appropriate controls, such as placebos and sham acupuncture groups. However, promising results have emerged, for example, showing efficacy of acupuncture in adult postoperative and chemotherapy nausea and vomiting and in postoperative dental pain. There are other situations such as addiction, stroke rehabilitation, headache, menstrual cramps, tennis elbow, fibromyalgia, myofascial pain, osteoarthritis, low back pain, carpal tunnel syndrome, and asthma, in which acupuncture may be useful as an adjunct treatment or an acceptable alternative or be included in a comprehensive management program. Further research is likely to uncover additional areas where acupuncture interventions will be useful.''


The NIH's [http://nccam.nih.gov/ National Center For Complementary And Alternative Medicine] continues to abide by the recommendations of the NIH Consensus Statement [http://nccam.nih.gov/health/acupuncture/].
===Low back pain===
Acupuncture has uncertain benefit for chronic [[lumbalgia|low back pain]].<ref name=pmid15674876>{{cite journal | author = Furlan A ''et al.''| title = Acupuncture and dry-needling for low back pain. | journal = Cochrane Database Syst Rev | volume =  | pages = CD001351 | year = | id = PMID 15674876}}</ref> While acupuncture may be better than usual care<ref name=pmid16980316>{{cite journal | author = Thomas K ''et al.'' | title = Randomised controlled trial of a short course of traditional acupuncture compared with usual care for persistent non-specific low back pain. | journal = BMJ | volume = 333| pages = 623 | year = 2006 | id = PMID 16980316}}</ref>, acupuncture does not seem to be better than sham acupuncture which questions whether it has benefit beyond placebo<ref name="pmid19433697">{{cite journal |author=Cherkin DC ''et al.'' |title=A randomized trial comparing acupuncture, simulated acupuncture, and usual care for chronic low back pain |journal=Arch. Intern. Med. |volume=169 |pages=858–66 |year=2009 |pmid=19433697 |doi=10.1001/archinternmed.2009.65 |url=http://archinte.ama-assn.org/cgi/pmidlookup?view=long&pmid=19433697 |issn=}}</ref>.


In 1997, the following statement was adopted as policy of the AMA after a report on a number of alternative therapies including acupuncture:[http://www.ama-assn.org/ama/pub/category/13638.html]
===Asthma===
''<blockquote>"There is little evidence to confirm the safety or efficacy of most alternative therapies. Much of the information currently known about these therapies makes it clear that many have not been shown to be efficacious. Well-designed, stringently controlled research should be done to evaluate the efficacy of alternative therapies."</blockquote>''
Acupuncture and [[placebo]] [[adrenergic beta-agonist]] inhaler may make patients with [[asthma]] feel subjectively better, but their lung function does not change.<ref name="pmid21751905">{{cite journal| author=Wechsler ME, Kelley JM, Boyd IO, Dutile S, Marigowda G, Kirsch I et al.| title=Active albuterol or placebo, sham acupuncture, or no intervention in asthma. | journal=N Engl J Med | year= 2011 | volume= 365 | issue= 2 | pages= 119-26 | pmid=21751905 | doi=10.1056/NEJMoa1103319 | pmc= | url= }} </ref>
 
A common criticism of studies that appear to show that acupuncture is effective is that most have methodological weaknesses. Many are not double blinded and are not randomised. However, in acupuncture: it is difficult to design studies in which the person providing treatment is blinded as to the treatment being given. The same problem arises in double-blinding procedures used in biomedicine, including virtually all surgical procedures, dentistry, physical therapy, etc.; the [http://consensus.nih.gov/1997/1997Acupuncture107html.htm NIH Consensus Statement] notes such issues with regard to [[Sham (falsity)|sham]] acupuncture, a technique often used in studies purporting to be double-blinded. See also [[Evidence-based medicine#Criticism of evidence-based medicine|Criticism of evidence-based medicine]]. Tonelli, a critic of EBM, argues that [[complementary and alternative medicine]] (CAM) cannot be EBM-based unless the definition of evidence is changed. [http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=pubmed&dopt=Abstract&list_uids=11739043&query_hl=2&itool=pubmed_docsum].


==Safety==
==Safety==
Some forms of acupuncture, such as the Japanese ''Tōyōhari'' and ''Shōnishin'', often use [[Non-invasive (medical)|non-invasive]] techniques, in which specially-designed needles are rubbed or pressed against the skin. These methods are common in Japanese pediatric use. However, many forms of acupuncture are [[Invasive (medical)|invasive]] procedures, and so are not without risk, although injuries are rare among patients treated by trained practitioners.[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstractplus&list_uids=12564354][http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=9395661&query_hl=9&itool=pubmed_docsum] A survey of more than 400 patients receiving more than 3500 acupuncture treatments[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=12801494&query_hl=5&itool=pubmed_docsum] found that the most common adverse effects were:
Some forms of acupuncture, such as the Japanese ''Tōyōhari'' and ''Shōnishin'', often use [[Non-invasive (medical)|non-invasive]] techniques, in which specially-designed needles are rubbed or pressed against the skin. These methods are common in Japanese pediatric use. However, many forms of acupuncture are [[Invasive (medical)|invasive]] procedures, and so are not without risk, although injuries are rare among patients treated by trained practitioners.<ref>[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?itool=abstractplus&db=pubmed&cmd=Retrieve&dopt=abstractplus&list_uids=12564354][http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=9395661&query_hl=9&itool=pubmed_docsum]</ref> A survey of more than 400 patients receiving more than 3500 acupuncture treatments<ref>[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=12801494&query_hl=5&itool=pubmed_docsum]</ref> found that the most common adverse effects were:
*Minor [[bleeding]] after removing the needles, affecting about 3% of patients. Holding a cotton ball for about one minute over the site usually stops the bleeding.
*Minor [[bleeding]] after removing the needles, affecting about 3% of patients. Holding a cotton ball for about one minute over the site usually stops the bleeding.
*[[Hematoma]], (bruises) affecting about 2% of patients. These usually go away after a few days.
*[[Hematoma]], (bruises) affecting about 2% of patients. These usually go away after a few days.
*[[Dizziness]], affecting about 1% of patients. Some patients have a fear of needles which can produce dizziness and other symptoms of anxiety. Patients are usually treated lying down to reduce the likelihood of fainting.
*[[Dizziness]], affecting about 1% of patients. Some patients have a fear of needles which can produce dizziness and other symptoms of anxiety. Patients are usually treated lying down to reduce the likelihood of fainting.
*[[Infection]] is a risk that may arise due to use of unsterile or re-used needles. Reused needles can transfer blood-borne diseases such as [[HIV]] and [[hepatitis]]. Accordingly, the use of sterile, single-use-only needles is mandated by law in some countries, including the USA. Use of sterile needles is also mandated in parts of Australia (cf. [[Acupuncture#Australia|above]]), but poorly enforced. [http://www.parliament.nsw.gov.au/prod/parlment/committee.nsf/0/CA78E168CE1B6FA2CA2570B400200A34]
*[[Infection]] is a risk that may arise due to use of unsterile or re-used needles. Reused needles can transfer blood-borne diseases such as [[HIV]] and [[hepatitis]]. Accordingly, the use of sterile, single-use-only needles is mandated by law in some countries, including the USA. Use of sterile needles is also mandated in parts of Australia (cf. [[Acupuncture#Australia|above]]), but poorly enforced.<ref> [http://www.parliament.nsw.gov.au/prod/parlment/committee.nsf/0/CA78E168CE1B6FA2CA2570B400200A34]</ref>
 
The survey concluded: ''"Acupuncture has adverse effects, like any therapeutic approach. If it is used according to established safety rules and carefully at appropriate anatomic regions, it is a safe treatment method."''[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=12801494&query_hl=5&itool=pubmed_docsum]
 
Some western doctors believe that receiving any form of [[alternative medicine|alternative medical]] care without also receiving orthodox western medical care is inherently risky, since undiagnosed disease may go untreated and could worsen. For this reason many acupuncturists and doctors prefer to consider acupuncture a complementary therapy rather than an alternative therapy. Critics also express concern that unethical or naive practitioners may induce patients to exhaust financial resources by pursuing ineffective treatment.
[http://www.parliament.nsw.gov.au/prod/parlment/committee.nsf/0/CA78E168CE1B6FA2CA2570B400200A34]
 
The NIH consensus panel said that adverse side effects of acupuncture are very rare, and are often less common than those of many [[medication|drugs]] or other accepted medical procedures used for the same condition. In a Japanese survey of 55,291 acupuncture treatments given over 5 years by 73 acupuncturists, 99.8% had no significant minor adverse effects and there were no major adverse incidents Two combined studies in the UK of 66,229 acupuncture treatments yielded only 134 minor adverse events. <refYamashita H ''et al'' (1998) Adverse events related to acupuncture ''JAMA'' 280:1563-4 PMID 9820249
:''BMJ'' (2001)</ref>.
 
==External links==
====International Standards====
* [http://www.wpro.who.int/publications/pub_9290611057.htm Standard acupuncture nomenclature by WHO (World Health Organization)]
* World Health Organization list of acupuncture indications.''[http://www.aaom.org/default.asp?pagenumber=47494]
 
====Professional organizations====
* [http://www.aomalliance.org/ Acupuncture and Oriental Medicine Alliance (AOMAlliance)] - U.S. organization representing L.Ac.'s and other AOM practitioners, e.g. M.D.'s and D.C.'s
* [http://aaom.org/ American Association of Oriental Medicine (AAOM)] - U.S. organization representing L.Ac.'s exclusively
* [http://www.ccaom.org/ Council of Colleges of Acupuncture and Oriental Medicine (CCAOM)] - U.S. organization representing acupuncture schools; also administers [http://www.ccaom.org/CNTOver.html Clean Needle Technique (CNT)] course required for American board certification
* [http://www.acudetox.com/ National Acupuncture Detoxification Association] - U.S. organization advocating use of auricular (ear) acupuncture for treating [[addiction]]
* [http://www.acupuncture.org.uk The British Acupuncture Council (BAcC)] - U.K. organization representing acupuncturists
* American Academy of [[Medical acupuncture|Medical Acupuncture]] [http://www.medicalacupuncture.org/aama_marf/journal/vol15_3/article1.html]


====Regulatory organizations====
The survey concluded: ''"Acupuncture has adverse effects, like any therapeutic approach. If it is used according to established safety rules and carefully at appropriate anatomic regions, it is a safe treatment method."''<ref>[http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?db=pubmed&cmd=Retrieve&dopt=AbstractPlus&list_uids=12801494&query_hl=5&itool=pubmed_docsum]</ref>
* [http://nccaom.org/ National Certification Commission for Acupuncture and Oriental Medicine (NCCAOM)] - U.S. organization that administers board certification exams in acupuncture and Oriental medicine
* [http://www.acaom.org/ Accreditation Commission for Acupuncture and Oriental Medicine (ACAOM)] - National accrediting agency recognized by the [[United States Department of Education|U.S. Department of Education]] to accredit Master's-level programs in the acupuncture and Oriental medicine profession in the U.S.
* [http://www.faomra.com/ Federation of Acupuncture and Oriental Medicine Regulatory Agencies (FAOMRA)] - State regulatory agency forum in the U.S.


====Historical Images====
Some western doctors believe that receiving any form of [[alternative medicine|alternative medical]] care without also receiving orthodox medical care is risky, as undiagnosed disease may go untreated and could worsen. For this reason, many acupuncturists and doctors prefer to consider acupuncture as a ''complementary'' therapy rather than an ''alternative'' therapy. Critics also express concern that unethical or naive practitioners may induce patients to exhaust financial resources by pursuing ineffective treatment. However, the NIH panel said that adverse side effects of acupuncture are very rare, and are often less common than those of many [[medication|drugs]] or other accepted medical procedures used for the same condition. In a Japanese survey of 55,291 acupuncture treatments given over 5 years by 73 acupuncturists, 99.8% had no significant minor adverse effects and there were no major adverse incidents Two combined studies in the UK of 66,229 acupuncture treatments yielded only 134 minor adverse events.<ref>'''Safety'''
* [http://www.nlm.nih.gov/exhibition/historicalanatomies/huashou_home.html Hua Shou's ''Shi si jing fa hui (Expression of the Fourteen Meridians).'' (Tokyo, 1716).]
:Yamashita H ''et al'' (1998) Adverse events related to acupuncture ''JAMA'' 280:1563-4 PMID 9820249
 
:''BMJ'' (2001)</ref>
==Bibliography==
* Brinkhaus B ''et al'' (2005} Acupuncture in Patients with Osteoarthritis of the Knee: A Randomised Trial. The Lancet, Vol 366,
* Chen JDZ, Ouyang H. Therapeutic roles of acupuncture in functional gastrointestinal disorders. Aliment Pharmacol Therapy 2004; 20:831-841
* Kaptchuk, Ted.  ''The Web That Has No Weaver'' Congdon and Weed, (1983) ISBN 0-86553-109-9
*  Premier. EBSCO. [[30 January]] [[2006]] <http://search.epnet.com/>
*Health Professions Regulatory Advisory Council, ''Minister’s Referral Letter January 18, 2006 – Traditional Chinese Medicine (TCM)'' <http://www.hprac.org/english/projects.asp> [[20 March]] [[2006]]
* Porkert M "The Theoretical Foundations of Chinese Medicine"  MIT Press, 1974 ISBN 0-262-16058-7


==References==
==References==
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<references/>[[Category:Suggestion Bot Tag]]
 
[[Category:Acupuncture]]
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Acupuncture (from Latin acus, 'needle', and pungere, 'prick'; or in Standard Mandarin, zhēn jiǔ, meaning needle therapy) involves inserting and manipulating needles into 'acupuncture points' on the body with the aim of restoring health and well-being, and is believed to be effective at treating pain in certain cases. The definition of these points is standardized by the World Health Organization.[1] Acupuncture is thought to have originated in China and is most commonly associated with traditional Chinese medicine (TCM). Other types of acupuncture (Japanese, Korean, and classical Chinese acupuncture) are practiced and taught throughout the world. Clinical trials have found evidence that acupuncture can be efficacious for headache, low back pain and nausea, but for most conditions there is too little reliable evidence to determine whether acupuncture is effective or not. The World Health Organisation (WHO), the National Center for Complementary and Alternative Medicine (NCCAM) of the National Institute of Health (NIH), the American Medical Association (AMA) and several government reports have also commented on the efficacy of acupuncture. There is general agreement that acupuncture is safe when administered by well-trained practitioners, and that more research is warranted.

Acupuncture treatment in practice

In western medicine, vascular headaches (the kind accompanied by throbbing veins in the temples) are typically treated with analgesics such as aspirin and/or by agents that dilate the affected blood vessels, but in acupuncture a common treatment is to stimulate points that are located roughly in the center of the webs between the thumbs and the palms, the hé gǔ points. These points are described as 'targeting the face and head'. The patient reclines, the points on each hand are sterilized with alcohol, and thin, disposable needles are inserted to a depth of 3-5 mm until the patient feels a 'twinge', often accompanied by a slight twitching of the area between thumb and hand. While the needles are in place, most patients report a pleasant 'tingling' and a sense of relaxation; they are left in place for 15-20 minutes while the patient rests, and are then removed.

Patients often report one or more kinds of sensation associated with this treatment, sensations stronger than those felt by a patient not suffering from a vascular headache:

  1. Extreme sensitivity to pain at the points in the webs of the thumbs.
  2. In bad headaches, a feeling of nausea that persists for roughly the same period as the stimulation being administered to the webs of the thumbs.
  3. Simultaneous relief of the headache.

Most modern acupuncturists use fine, disposable stainless steel needles (of diameter 0.18-0.51 mm), sterilized with ethylene oxide or by autoclave. The upper third of these needles is wound with a thicker wire (typically bronze), or covered in plastic, to stiffen the needle and provide a handle for the acupuncturist to grasp while inserting. The size and type of needle used, and the depth of insertion, depend on the acupuncture style being practiced.

Warming an acupuncture point, typically by moxibustion (the burning of mugwort), is often used as a supplementary treatment. The Chinese term zhēn jǐu, commonly used to refer to acupuncture, comes from zhen meaning 'needle', and jiu meaning 'moxibustion'. Moxibustion is still used to varying degrees among the schools of oriental medicine. One technique is to insert the needle at the desired acupuncture point, attach dried mugwort to the external end of an acupuncture needle, and then ignite the mugwort. The mugwort will then smolder for several minutes and conduct heat through the needle to the tissue surrounding the needle in the patient's body. Another common technique is to hold a glowing stick of moxa over the needles. Moxa is also sometimes burned at the skin surface, usually by applying an ointment to the skin to protect from burns.

History

In China, acupuncture can perhaps be traced back to the 1st millennium BCE, and archeological evidence has been identified with the Han dynasty (202 BCE to 220 CE). Forms of it are also described in the literature of traditional Korean medicine where it is called chimsul, and it is also important in Kampo, the traditional medicine of Japan. Ötzi, a 5000-year-old mummy found in the Alps, has more than fifty tattoos on his body, some of which are on acupuncture points that would today be used to treat ailments that Ötzi suffered from. Some scientists believe that this is evidence that practices similar to acupuncture were practiced elsewhere in Eurasia during the early bronze age.[2]. The Chinese medical text that first describes acupuncture is The Yellow Emperor’s Classic of Internal Medicine (History of Acupuncture), which was compiled around 305–204 BCE, but some hieroglyphics dating to 1000 BCE indicate a much earlier use of acupuncture. Bian stones, sharp pointed stones used to treat diseases in ancient times have also been discovered in China, and some scholars believe that the bloodletting for which these stones were probably used presages certain acupuncture techniques.[3]

The early Chinese Communist Party ridiculed classical forms of Chinese medicine as superstitious and irrational[4] but Communist Party Chairman Mao declared that "Chinese medicine and pharmacology are a great treasure house and efforts should be made to explore them and raise them to a higher level"[5]. Representatives were sent across China to collect information about Chinese medicine. TCM is the formalized system that resulted, combining acupuncture, Chinese herbal medicine, tui na and other modalities. After the Cultural Revolution, TCM was incorporated into university medical curricula under the 'Three Roads' policy, whereby TCM, biomedicine and a synthesis of the two were all encouraged. Subsequently, forms of classical Chinese medicine other than TCM were outlawed, and some practitioners left China. The first forms of acupuncture to reach the USA were brought by non-TCM practitioners, many employing styles handed down in family lineages, or from master to apprentice (collectively known as 'Classical Chinese Acupuncture').

Traditional theory

Traditional acupuncture theory regards the body as having several 'systems of function' that are often associated with physical organs, although some, such as the 'triple heater' (San Jiao, also called the 'triple burner') have no corresponding physical organ. Disease is understood as a loss of homeostasis, and is treated by modifying the activity of one or more systems of function through the activity of needles, pressure, heat etc. on sensitive parts of the body traditionally called 'acupuncture points' in English, or xue (cavities) in Chinese. These acupoints used might not be in the same part of the body as the symptom. Some acupuncturists, particularly in Japan, reply on palpation for tender points, called 'ashi' ('that's it' or 'ouch!') points. The TCM theory is that such points work by stimulating the meridian system to bring relief by rebalancing yin, yang and qi (also spelled "ch'i").

Treatment of acupuncture points may be performed along the twelve main or eight extra meridians, located throughout the body, or on 'ashi' points. The twelve primary meridians run vertically, bilaterally, and symmetrically and every channel corresponds to and connects internally with one of the twelve Zang Fu ('organs'). Ten of the main meridians are named after organs of the body (Heart, Liver, etc.), and two after so-called body functions (Heart Protector or Pericardium, and San Jiao; note that the meridians are capitalized to avoid confusion with a physical organ; e.g. the 'Heart meridian' not the 'heart meridian'). Of the eight extra meridians, two have acupuncture points of their own, and six are 'activated' using a master and couple point technique which involves needling the acupuncture points on the twelve main meridians that correspond to the particular extra meridian. The two most important of the 'extra' meridians are situated on the midline of the anterior and posterior aspects of the trunk and head. This means that there are six yin and six yang channels; three yin and three yang channels on each arm and each leg.

Chinese theory holds that acupuncture works by normalizing the flow of qi through the body; qi is a concept that pervades Chinese philosophy and is commonly translated as 'vital energy'. Qi moves along an internal and an external pathway; the external pathway is what is normally shown on an acupuncture chart, and is relatively superficial — all the acupuncture points of a channel lie on its external pathway. The internal pathways are where qi enters the body cavities and the related Zang-Fu organs. The superficial pathways of the twelve channels describe three complete circuits of the body. Pain or illnesses are treated by attempting to remedy local or systemic accumulations or deficiencies of qi. Pain is thought to indicate stagnation of the flow of qi, and an axiom of acupuncture is no pain, no blockage; no blockage, no pain.

Many patients claim to experience the sensations of stimulus known in Chinese as 'deqi' ('arrival of the qi'). This was considered to be evidence of locating the desired point.

Diagnosis

The acupuncturist decides which points to treat by observing and questioning the patient, much as a Western physician takes a medical history, followed by examination based on inquiry and observation.

Inquiring focuses on the 'seven inquiries': chills and fever; perspiration; appetite, thirst and taste; defecation and urination; pain; sleep; and menses and leukorrhea.

In TCM, there are several physical diagnostic methods, including: inspection, auscultation and olfaction, inquiring, and palpation.

Inspection focuses on the face and particularly the tongue, including analysing its size, shape, tension, color and coating, and the absence or presence of teeth marks around the edge.

Auscultation involves listening for particular sounds (such as wheezing).

Olfaction refers to assessing to unusual body odor. This remains a technique in Western medical examination; diabetic emergencies, certain infections, and other conditions do carry specific smells.

Palpation includes feeling the body for tender 'ashi' points, and palpating the left and right radial pulses at two levels of pressure (superficial and deep) and three positions (immediately proximal to the wrist crease, and one and two fingers' breadth proximally, usually palpated with the index, middle and ring fingers).

Other forms of acupuncture use additional diagnostic techniques. In many forms of classical Chinese acupuncture, as well as Japanese acupuncture, palpation of the muscles and the hara (abdomen) are important in diagnosis.

TCM perspective on treatment of disease

Acupuncture has been used to treat many different conditions. Typically, treatment is highly-individualized and based on subjective and intuitive impressions, rather than on controlled scientific research.[6].TCM is based on the treatment of "patterns of disharmony" rather than biomedical diagnoses, and a TCM pattern of disharmony may be associated with a range of medical diagnoses: for example, Deficiency of Spleen Qi could manifest as chronic fatigue, diarrhea or uterine prolapse. Conversely, two patients with the same medical diagnosis might have different TCM patterns. These observations are encapsulated in the TCM aphorism One disease, many patterns; one pattern, many diseases.[7]

Criticism of TCM theory

TCM theory predates use of the scientific method. According to a report for CSICOP, some Chinese scientists maintain that qi is still a useful metaphor, and the concepts of Yin and Yang parallel scientific notions of endocrinological and metabolic feedback mechanisms. while others dismiss qi as having no relationship to modern physiology and medicine.[8] Ted Kaptchuk, author of The Web That Has No Weaver, refers to the theory of acupuncture as 'prescientific' ideas, that are essentially cultural and speculative constructs that have little significance outside the context of Chinese civilization, or outside a practical clincal context. Their 'truth', he says, lies in how they are used to treat "real people with real complaints".

According to the NIH consensus statement on acupuncture, "Despite considerable efforts to understand the anatomy and physiology of the 'acupuncture points', the definition and characterization of these points remains controversial. Even more elusive is the basis of some of the key traditional Eastern medical concepts such as the circulation of qi, the meridian system, and the five phases theory, which are difficult to reconcile with contemporary biomedical information but continue to play an important role in the evaluation of patients and the formulation of treatment in acupuncture."[9]

Legal and political status

In the USA, acupuncturists are generally known as 'Licensed Acupuncturists' (L.Ac.). The 'Diplomate of Acupuncture' (Dipl. Ac.) means that the holder is board-certified by the National Certification Commission for Acupuncture and Oriental Medicine. Professional degrees include 'M.Ac.' (Master of Acupuncture), 'M.S.Ac.' (Master of Science in Acupuncture), 'M.S.O.M' (Master of Science in Oriental Medicine), 'M.A.O.M.' (Master of Acupuncture and Oriental Medicine). 'O.M.D.' signifies Oriental Medical Doctor, and may be used by graduates of Chinese medical schools, or by American graduates of postgraduate programs, but is not currently recognized by the Accreditation Commission for Acupuncture and Oriental Medicine which accredits American educational programs. Physicians, dentists and chiropractors sometimes also practice acupuncture, though they often receive less training than L.Ac.'s, who generally receive 2500-4000 hours of training in Chinese medical theory, acupuncture, and basic biosciences. Some are also trained in Chinese herbology and/or bodywork. The training required for healthcare providers who are not L.Ac.'s varies from none to a few hundred hours, and in Hawaii the practice of acupuncture requires full training as a licensed acupuncturist. The National Certification Commission for Acupuncture and Oriental Medicine[10] tests practitioners to ensure they are knowledgeable aboutChinese medicine and sterile technique. Many states require this test for licensing, but each has its own requirements. In some, acupuncturists must work with an MD. In 1996, the Food and Drug Administration changed the status of acupuncture needles from Class III to Class II medical devices, meaning that needles are regarded as safe and effective when used appropriately by licensed practitioners.[11]

In Australia, the legalities also vary by state. In 2000, an independent government agency, The Chinese Medicine Registration Board of Victoria [28], was established to oversee Chinese Herbal Medicine and Acupuncture in the state of Victoria, aiming to ensure that only appropriately experienced or qualified practitioners can practice Chinese Medicine. The Parliamentary Committee on the Health Care Complaints Commission in New South Wales commissioned a report investigating TCM practice. [29] They recommended the introduction of a government appointed registration board that would regulate the profession by restricting use of the titles 'acupuncturist', 'Chinese herbal medicine practitioner' and 'Chinese medicine practitioner'. The aim of registration is to ensure the competency of registered acupuncturists, to enforce guidelines regarding continuing professional education and to investigate complaints of misconduct. Victoria is the only state of Australia with an operational registration board.[12] Acupuncturists in NSW are bound by the guidelines in the Public Health (Skin Penetration) Regulation 2000 which is enforced at local council level.[13]

Scientific theories and mechanisms of action

The gate control theory of pain, developed by Ronald Melzack and Patrick Wall, proposed that pain perception is not simply a direct result of activating pain fibers, but involves the synthesis of many different types of sensory information some of which can block (or 'gate') the signals from the pain receptors. Accordingly, the perception of pain can be altered by a number of means physiologically, psychologically and pharmacologically.[14]

Pain transmission can be modulated at many levels in the brain, including the periaqueductal gray, thalamus, and the feedback pathways from the cortex to the thalamus. Each of these brain structures processes different aspects of the pain — from experiencing emotional pain to the perception of what the pain feels like, to the recognition of how harmful the pain is, and to localizing where the pain is coming from. Pain blockade at some of these locations is mediated by neurohormones, especially those that bind to opioid receptors. The opiate drug morphine relieves pain by acting on the same type of opioid receptor as endorphins and enkephalins, naturally occurring opiate-like substances that the brain produces and releases.

Most importantly for understanding how acupuncture might work, it was shown that mild sensory stimulation (rubbing) relieves the feeling of pain because the activity of 'touch' receptors can partly inhibit the activity of pain receptors. Accordingly, it was recognised that this might provide a basis for understanding how one type of stimulation (by acupuncture needles) might block pain signals.

Research into efficacy

In 1995, George A. Ulett, Clinical Professor of Psychiatry at the University of Missouri School of Medicine, stated that "devoid of metaphysical thinking, acupuncture becomes a rather simple technique that can be useful as a nondrug method of pain control." He believes that the traditional Chinese variety is mainly a placebo treatment, but electrical stimulation of about 80 acupuncture points proved useful for pain control.[15] Sham acupuncture has been found to be as effective as real acupuncture for treating migraines. According to a large German study in 2006: “Treatment outcomes for migraine do not differ between patients treated with sham acupuncture, verum acupuncture, or standard therapy.”[16]

There is scientific agreement that an evidence-based medicine (EBM) framework should be used to assess health outcomes and that systematic reviews with strict protocols are important[17]. Organisations such as the Cochrane Collaboration publish such reviews. While the Cochrane has concluded that acupuncunture may not be effective for pain,[18] for many conditions, it concluded there is insufficient evidence that acupuncture is beneficial, often because of the paucity and poor quality of the research.

Efficacy

For the following conditions, the Cochrane Collaboration concluded there is insufficient evidence that acupuncture is beneficial:

Giving up smoking Chronic asthma Bell's palsy Shoulder pain Lateral elbow pain Acute stroke Rheumatoid arthritis Depression Induction of labour

For low back pain, a Cochrane review (2006) of 35 RCTs covering 2861 patients concluded "There is insufficient evidence to make any recommendations about acupuncture or dry-needling for acute low-back pain. For chronic low-back pain, results show that acupuncture is more effective for pain relief than no treatment or sham treatment, in measurements taken up to three months. The results also show that for chronic low-back pain, acupuncture is more effective for improving function than no treatment, in the short-term. Acupuncture is not more effective than other conventional and 'alternative' treatments. When acupuncture is added to other conventional therapies, it relieves pain and improves function better than the conventional therapies alone. However, effects are only small."[19]
A review in Annals of Internal Medicine (2005) reached similar conclusions[20]
For headache, Cochrane concluded (2006) that "evidence supports the value of acupuncture for the treatment of idiopathic headaches."[21]
A Cochrane review (2006) concluded that "compared with anti emetic prophylaxis, P6 acupoint stimulation seems to reduce the risk of nausea but not vomiting"[22].
Cochrane also stated: "Electroacupuncture is effective for first day vomiting after chemotherapy, but trials considering modern antivomiting drugs are needed."[23]
Bandolier said "P6 acupressure in two studies showed 52% of patients with control having a success, compared with 75% with P6 acupressure"[24] and that one in five adults, but not children showed reduction in early postoperative nausea[25]

In 1997, the NIH issued a consensus statement on acupuncture; it said "Preclinical studies have documented acupuncture's effects, but they have not been able to fully explain how acupuncture works within the framework of the Western system of medicine." The statement declared that acupuncture is widely practiced in the USA, and there is enough evidence of its value to expand its use into conventional medicine and to encourage further studies, although many studies have provided equivocal results because of design, sample size, and other factors.[26], and said that the data supporting acupuncture are as strong as those for many accepted Western medical therapies. It concluded:

... promising results have emerged, for example, showing efficacy of acupuncture in adult postoperative and chemotherapy nausea and vomiting and in postoperative dental pain. There are other situations such as addiction, stroke rehabilitation, headache, menstrual cramps, tennis elbow, fibromyalgia, myofascial pain, osteoarthritis, low back pain, carpal tunnel syndrome, and asthma, in which acupuncture may be useful as an adjunct treatment or an acceptable alternative or be included in a comprehensive management program.

A common criticism of studies that seem to show that acupuncture is effective is that most have methodological weaknesses. Many are not double blinded and are not randomised. However, in acupuncture it is hard to design studies in which the person providing treatment is blinded as to the treatment being given. The same problem arises in double-blinding procedures used in virtually all surgical procedures, dentistry, physical therapy, etc.; the NIH Consensus Statement notes such issues with regard to sham acupuncture, a technique often used in studies purporting to be double-blinded. See also Criticism of evidence-based medicine. Tonelli, a critic of EBM, argues that complementary and alternative medicine (CAM) cannot be EBM-based unless the definition of evidence is changed.[27].

Low back pain

Acupuncture has uncertain benefit for chronic low back pain.[28] While acupuncture may be better than usual care[29], acupuncture does not seem to be better than sham acupuncture which questions whether it has benefit beyond placebo[30].

Asthma

Acupuncture and placebo adrenergic beta-agonist inhaler may make patients with asthma feel subjectively better, but their lung function does not change.[31]

Safety

Some forms of acupuncture, such as the Japanese Tōyōhari and Shōnishin, often use non-invasive techniques, in which specially-designed needles are rubbed or pressed against the skin. These methods are common in Japanese pediatric use. However, many forms of acupuncture are invasive procedures, and so are not without risk, although injuries are rare among patients treated by trained practitioners.[32] A survey of more than 400 patients receiving more than 3500 acupuncture treatments[33] found that the most common adverse effects were:

  • Minor bleeding after removing the needles, affecting about 3% of patients. Holding a cotton ball for about one minute over the site usually stops the bleeding.
  • Hematoma, (bruises) affecting about 2% of patients. These usually go away after a few days.
  • Dizziness, affecting about 1% of patients. Some patients have a fear of needles which can produce dizziness and other symptoms of anxiety. Patients are usually treated lying down to reduce the likelihood of fainting.
  • Infection is a risk that may arise due to use of unsterile or re-used needles. Reused needles can transfer blood-borne diseases such as HIV and hepatitis. Accordingly, the use of sterile, single-use-only needles is mandated by law in some countries, including the USA. Use of sterile needles is also mandated in parts of Australia (cf. above), but poorly enforced.[34]

The survey concluded: "Acupuncture has adverse effects, like any therapeutic approach. If it is used according to established safety rules and carefully at appropriate anatomic regions, it is a safe treatment method."[35]

Some western doctors believe that receiving any form of alternative medical care without also receiving orthodox medical care is risky, as undiagnosed disease may go untreated and could worsen. For this reason, many acupuncturists and doctors prefer to consider acupuncture as a complementary therapy rather than an alternative therapy. Critics also express concern that unethical or naive practitioners may induce patients to exhaust financial resources by pursuing ineffective treatment. However, the NIH panel said that adverse side effects of acupuncture are very rare, and are often less common than those of many drugs or other accepted medical procedures used for the same condition. In a Japanese survey of 55,291 acupuncture treatments given over 5 years by 73 acupuncturists, 99.8% had no significant minor adverse effects and there were no major adverse incidents Two combined studies in the UK of 66,229 acupuncture treatments yielded only 134 minor adverse events.[36]

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  29. Thomas K et al. (2006). "Randomised controlled trial of a short course of traditional acupuncture compared with usual care for persistent non-specific low back pain.". BMJ 333: 623. PMID 16980316.
  30. Cherkin DC et al. (2009). "A randomized trial comparing acupuncture, simulated acupuncture, and usual care for chronic low back pain". Arch. Intern. Med. 169: 858–66. DOI:10.1001/archinternmed.2009.65. PMID 19433697. Research Blogging.
  31. Wechsler ME, Kelley JM, Boyd IO, Dutile S, Marigowda G, Kirsch I et al. (2011). "Active albuterol or placebo, sham acupuncture, or no intervention in asthma.". N Engl J Med 365 (2): 119-26. DOI:10.1056/NEJMoa1103319. PMID 21751905. Research Blogging.
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    Yamashita H et al (1998) Adverse events related to acupuncture JAMA 280:1563-4 PMID 9820249
    BMJ (2001)