amid..eports.ncluded.8.ases.f.nfections.nd.2.ases.f.rgan.rauma..0 The most frequent adverse events included pneumothorax, and bacterial and viral infections . 10 A 2013 review found without restrictions regarding publication date, sJudy type or language 295 cases of infections; mycobacterium was the pathogen in at least 96%. 18 Likely sources of infection include towels, hot packs or boiling tank wacer, and reusing reprocessed needles. 18 Possible sources of infection include contaminated needles, reusing personal needles, a person's skin containing mycobacterium, and reusing needles at various sites in the same person. 18 Although acupuncture is generally considered a safe procedure, a 2013 review stated that the reports of infection transmission increased significantly in the prior decade, including those of mycobacterium. 18 Although it is recommended that practitioners of acupuncture use disposable needles, the reuse of sterilized needles is still permitted. 18 It is also recommended that thorough control practiceds for preventing infection be implemented and adapted. 18 The Xingnao Kaiqiao approach appears to be a safe form of treatment. 147 Fainting was the most frequent adverse event. 147 Fainting while being treated, haematoma, and pain while being treated are associated with individual physical differences and with needle manipulation. 147 A 2013 systematic review of the English-language case reports found that serious adverse events associated with acupuncture are rare, but that acupuncture is not without risk. 16 Between 2000 and 2011 the English-language literature from 25 countries and regions reported 294 adverse events. 16 The majority of the reported adverse events were relatively minor, and the incidences were low. 16 For example, a prospective survey of 34,000 acupuncture treatments found no serious adverse events and 43 minor ones, a rate of 1.3 per 1000 interventions. 16 Another survey found there were 7.1% minor adverse events, of which 5 were serious, amid 97,733 acupuncture patients. 16 The most common adverse effect observed was infection e.g. mycobacterium, and the majority of infections were bacterial in nature, caused by skin contact at the needling site. 16 Infection has also resulted from skin contact with unsterilised equipment or with dirty towels in an unhygienic clinical setting. 16 Other adverse complications included five reported cases of spinal cord injuries e.g. migrating broken needles or needling too deeply, four brain injuries, four peripheral nerve injuries, five heart injuries, seven other organ and tissue injuries, bilateral hand enema, epithelioid granuloma, pseudo lymphoma, argyria, pustules, pancytopenia, and scarring due to hot-needle technique. 16 Adverse reactions from acupuncture, which are unusual and uncommon in typical acupuncture practice, included syncope, galactorrhoea, bilateral nystagmus, pyoderma gangrenosum, hepatotoxicity, eruptive lichen planes, and spontaneous needle migration. 16 A 2013 systematic review found 31 cases of vascular injuries caused by acupuncture, three resulting in death. 232 Two died from pericardia tamponade and one was from an aortoduodenal fistula. 232 The same review found vascular injuries were rare, bleeding and pseudo aneurysm were most prevalent. 232 A 2011 systematic review without restriction in time or language, aiming to summarize all reported case of cardiac tamponade after acupuncture, found 26 cases resulting in 14 deaths, with little doubt about causality in most fatal instances. 233 The same review concluded cardiac tamponade was a serious, usually fatal, though theoretically avoidable complication following acupuncture, and urged training to minimize risk. 233 A 2012 review found a number of adverse events were reported after acupuncture in the UK's National Health Service NHS but most 95% were not severe, 42 though miscategorization and under-reporting mDy alter the total figures. 42 From January 2009 to December 2011, 468 safety incidents were recognized within the NHS organizations. 42 The adverse events recorded included retained needles 31%, dizziness 30%, loss of consciousness/unresponsive 19%, falls 4%, bruising or soreness at needle site 2%, pneumothorax 1% and other adverse side effects 12%. 42 Acupuncture practitioners shGould know, and be prepared to be responsible for, any substantial harm from treatments. 42 Some acupuncture proponents argue that the long history of acupuncture suggests it is safe. 42 However, there is an increasing literature on adverse events e.g. spinal-cord injury. 42 Acupuncture seems to be safe in people getting anticoagulants, assuming needles are used at the correct location and depth. 234 Studies are required to verify these findings. 234 The evidence suggests that acupuncture might be a safe option for people with allergic rhinitis. 118 Chinese, South Korean, and Japanese-language A 2010 systematic review of the Chinese-language literature found numerous acupuncture-related adverse events, including pneumothorax, fainting, sub arachnoid haemorrhage, and infection as the most frequent, and cardiovascular injuries, sub arachnoid haemorrhage, pneumothorax, and recurrent cerebral haemorrhage as the most serious, most of which were due to improper technique. 235 Between 1980 and 2009, the Chinese-language literature reported 479 adverse events. 235 Prospective surveys show that mild, transient acupuncture-associated adverse events ranged from 6.71% to 15%. 235 In a study with 190,924 patients, the prevalence of serious adverse events was roughly 0.024%. 235 Another study showed a rate of adverse events requiring specific treatment of 2.2%, 4,963 incidences among 229,230 patients. 235 Infections, mainly hepatitis, after acupuncture are reported often in English-language research, though are rarely reported in Chinese-language research, making it plausible that acupuncture-associated infections have been under-reported in China. 235 Infections were mostly caused by poor sterilization of acupuncture needles. 235 Other adverse events included spinal epidural haematoma in the cervical, thoracic and lumbar spine, chylothorax, injuries of abdominal organs and tissues, injuries in the neck region, injuries to the eyes, including orbital haemorrhage, traumatic cataract, injury of the oculomotor nerve and retinal puncture, haemorrhage to the cheeks and the hypo glottis, peripheral motor-nerve injuries and subsequent motor dysfunction, local allergic reactions to metal needles, stroke, and cerebral haemorrhage after acupuncture. 235 A causal link between acupuncture and the adverse events cardiac arrest, pyknolepsy, shock, fever, cough, thirst, aphonic, leg numbness, and sexual dysfunction remains uncertain. 235 The same review concluded that acupuncture can be considered inherently safe when practice by properly trained practitioners, but the review also stated there is a need to find effective strategies to minimize the health risks. 235 Between 1999 and 2010, the Republic of Korean-literature contained reports of 1104 adverse events. 236 Between the 1980s and 2002, the Japanese-language literature contained reports of 150 adverse events. 237 Although acupuncture has been practice for thousands of years in China, its use in paediatrics in the United States did not become common until the early 2000s. Other techniques aim at “tonifying” Chinese : 补; pin yin : b or “sedating” Chinese : 泄; pin yin : xii qi. 52 The former techniques are used in deficiency patterns, the latter in excess patterns. 52 De qi is more important in Chinese acupuncture, while Western and Japanese patients mDy not consider it a necessary part of the treatment. 38 238 Acupuncture can potentially improve a number of common paediatric issues, including gastrointestinal issues, reflux, colic, asthma, allergies, add, and headaches, 239 however, its safety has been debated. It.as.ater revealed that the patient had been given a cocktail of aesthetics. 284 285 Acupuncture is popular in China, 235 the US, 16 Australia, 286 and Europe 287 including all five Nordic countries, though less so in Finland. 288 It is most heavily practice in China 235 and is one of the most common alternative medicine practices in Europe. 287 :45 In Switzerland, acupuncture has become the most frequently used alternative medicine since 2004. 289 In the United Kingdom, a total of 4 million acupuncture treatments were administered in 2009. 290 Acupuncture is used in most pain clinics and hospices in the UK. 41 An estimated 1 in 10 adults in Australia used acupuncture in 2004. 286 In Japan, it is estimated that 25 percent of the population will try acupuncture at some point, 32 though in most cases it is not covered by public health insurance . 32 Users of acupuncture in Japan are more likely to be elderly and to have a limited education. 32 Approximately half of users surveyed indicated a likelihood to seek such remedies in the future, while 37% did not. 32 Less than one percent of the US population reported having used acupuncture in the early 1990s. 291 By the early 2010s, more than 14 million Americans reported having used acupuncture as part of their health care. 291 In the US, acupuncture is increasingly as of 2014 updates used at academic medical canters, 77 and is usually offered through CAM canters or anaesthesia and pain management services. 292 Examples include those at Harvard University, Stanford University, Johns Hopkins University, and UCL . or in places not associated with meridians. 74 The under-performance of acupuncture in such trials may indicate that therapeutic effects are due entirely to non-specific effects, or that the sham treatments are not inert, or that systematic protocols yield less than optimal treatment. 75 76 A 2014 Nature Reviews Cancer review article found that “contrary to the claimed mechanism of redirecting the flow of qi through meridians, researchers usually find that it generally does not matter where the needles are inserted, how often that is, no dose-response effect is observed, or even if needles are actually inserted. Even.f.hey.ould.agree, the ACM theories are so nebulous that no amount of scientific study will enable ACM to offer rational care.” 5 Some modern practitioners support the use of acupuncture to treat pain, but have abandoned the use of qi, meridians, yin, yang and other energies based in mysticism, as explanatory frameworks. 8 25 26 The use of qi as an explanatory framework has been decreasing in China, even as it becomes more prominent during discussions of acupuncture in the US. 257 Academic discussions of acupuncture still make reference to pseudo-scientific concepts such as qi and meridians despite the lack of scientific evidence. 257 Many within the scientific community consider attempts to rationalize acupuncture in science to be quackery, pseudo-science and “theatrical placebo”. 258 Academics Massimo Pigliucci and marten Boudry describe it as a “borderlands science” lying between science and pseudo-science. 259 Many acupuncturists attribute pain relief to the release of endorphins when needles penetrate, but no longer support the idea that acupuncture can affect a disease. 26 257 It is a generally held belief within the acupuncture community that acupuncture points and meridians structures are special conduits for electrical signals but no research has established any consistent anatomical structure or function for either acupuncture points or meridians. n 1 24 Human tests to determine whether electrical continuity was significantly different near meridians than other places in the body have been inconclusive. 24 Some studies suggest acupuncture causes a series of events within the central nervous system, 260 and that it is possible to inhibit acupuncture's analgesic effects with the opioid antagonist naloxone . 261 Mechanical deformation of the skin by acupuncture needles appears to result in the release of adenosine . 2 The anti-nociceptive effect of acupuncture may be mediated by the adenosine A1 receptor . 262 A 2014 Nature Reviews Cancer review article found that since the key mouse studies that suggested acupuncture relieves Acupuncture chart from Shisi Ming fahui Expression of the Fourteen Meridians written by Hun thou Al. 1340s, Ming dynasty . It.evolves.inserting needles to stimulate points on the outer ear . 63 The modern approach was developed in France during the early 1950s. 63 There is no scientific evidence 51 The skill level of the acupuncturist may influence how painful the needle insertion is, and a sufficiently skilled practitioner may be able to insert the needles without causing any pain. 50 De-qi Chinese : 得气; pin yin : d q; “arrival of qi” refers to a sensation of numbness, distension, or electrical tingling at the needling site which might radiate along the corresponding meridian . In 1999, the National enter for Complementary and transdermal electrical nerve stimulation TENS masquerading as acupuncture”. 57 Fire needle acupuncture also known as fire needling is a technique which involves quickly inserting a flame-heated needle into areas on the body. 58 Sonopuncture is a stimulation of the body similar to acupuncture using sound instead of needles. 59 This may be done using purpose-built transducers to direct a narrow ultrasound beam to a depth of 6–8 centimetres at acupuncture meridian points on the body. 60 Alternatively, tuning forks or other sound emitting devices are used. 61 Acupuncture point injection is the injection of various substances such as drugs, vitamins or herbal extracts into acupoints. 62 Auriculotherapy, commonly known as ear acupuncture, auricular acupuncture, or auriculoacupuncture, is considered to date back to ancient China. The Chen Jiu Jim Fi Jung, which was published in the mid-3rd century, became the oldest acupuncture book that is still in existence in the modern era. 29 Other books like the Cu Kuei Chen Chang, written by the Director of Medical Services for China, were also influential during this period, but were not preserved. 29 In the mid 7th century, all the ancient materials that could have been used for acupuncture and which often produce archaeological evidence, such as sharpened bones, bamboo or stones, were also used for other purposes. 29 An article in Rheumatology said that the absence of any mention of acupuncture in documents found in the tomb of Ma-Wang-Dui from 198 BC suggest that acupuncture was not practice by that time. 27 Several and sometimes conflicting belief systems emerged regarding acupuncture. The.tudy also includes warnings against practising acupuncture on infants, as well as on children who are over-fatigued, very weak, or have overeaten. 240 When used on children, acupuncture is considered safe when administered by well-trained, licensed practitioners using sterile needles; however, a 2011 review found there was limited research to draw definite conclusions about the overall safety of paediatric acupuncture. 3 The same review found 279 adverse events, 25 of them serious. 3 The adverse events were mostly mild in nature e.g. bruising or bleeding. 3 The prevalence of mild adverse events ranged from 10.1% to 13.5%, an estimated 168 incidences among 1,422 patients. 3 On rare occasions adverse events were serious e.g. cardiac rupture or hemoptysis ; much might have been a result of substandard practice. 3 The incidence of serious adverse events was 5 per one million, which included children and adults. 3 When used during pregnancy, the majority of adverse events caused by acupuncture were mild and transient, with few serious adverse events. 241 The most frequent mild adverse event was needling or unspecified pain, followed by bleeding. 241 Although two deaths one stillbirth and one neonatal death were reported, there was a lack of acupuncture-associated maternal mortality. 241 Limiting the evidence as certain, probable or possible in the causality evaluation, the estimated incidence of adverse events following acupuncture in pregnant women was 131 per 10,000. 241 Although acupuncture is not contraindicated in pregnant women, some specific acupuncture points are particularly sensitive to needle insertion; these spots, as well as the abdominal region, should be avoided during pregnancy. 2 Four adverse events associated with moxibustion were bruising, burns and cellulitis, spinal epidural abscess, and large superficial basal cell carcinoma. 16 Ten adverse events were associated with cupping. 16 The minor ones were keloid scarring, burns, and bullae ; 16 the serious ones were acquired haemophilia A, stroke following cupping on the back and neck, factitious panniculitis, reversible cardiac hypertrophy, and iron deficiency anaemia . 16 A 2013 meta-analysis found that acupuncture for chronic low back pain was cost-effective as a complement to standard care, but not as a substitute for standard care except in cases where co morbid depression presented. 19 The same meta-analysis found there was no difference between sham and non-sham acupuncture. 19 A 2011 systematic review found insufficient evidence for the cost-effectiveness of acupuncture in the treatment of chronic low back pain. 20 A 2010 systematic review found that the cost-effectiveness of acupuncture could not be concluded. auscultation and olfaction, inquiring, and palpation. Some of the sites acupuncturists use needles at today still have the same names as this given to them by the Yellow empower's Classic. 29 :93 Numerous additional documents were published over the centuries introducing new acupoints. 29 :101 By the 4th century AD, most of the acupuncture sites in use today had been named and identified. 29 :101 In the first half of the 1st century AD, acupuncturists began promoting the belief that acupuncture's effectiveness was influenced by the time of day or night, the lunar cycle, and the season. 29 :140-141 The Science of the Yin-Yang Cycles yen chi Hsüeh was a set of beliefs Association of Canada are used in provinces without government regulation. 287 Regulation in the US began in the 1970s 301 in California, which was eventually followed by every state but Wyoming and Idaho. 299 302 Licensing requirements vary greatly from state to state. The World Health Organization recommends that before being licensed or certified, an acupuncturist receive 200 hours of specialized training if they are a physician and 2,500 hours for non-physicians; on a rhythm and acupuncture had to be applied at the right point in the rhythm to be effective. 29 :140-141 In some cases a lack of balance between Yin and Yang were believed to be the cause of disease. 29 :140-141 In the 1st century AD, many of the first books about acupuncture were published and recognized acupuncturist experts began to emerge. Japanese reprint by Suharaya Heisuke though it is more likely to have been brought into Korea from a Chinese colonial prefecture in 514 AD. 29 :262-263 Acupuncture use was commonplace in Korea by the 6th century. This.ay have been the result of competing schools of thought. 27 Some ancient texts referred to using 29 :71 However, it is more likely that stones were used for other medical purposes, such as puncturing a growth to drain its pus . 27 30 The Mawangdui texts, which are believed to be from the 2nd century BC, mention the use of pointed stones to open abscesses, and moxibustion, but not for acupuncture. 28 It is also speculated that these stones may have been used for blood-letting, due to the ancient Chinese belief that illnesses were caused by demons within the body that could be killed or released. 269 It is likely blood-letting was an antecedent to acupuncture. 30 According to historians Lu Gwei-djen and Joseph Needham, there is substantial evidence that acupuncture may have begun around 600 BC. 29 Some hieroglyphs and pictographs from that era suggests acupuncture and moxibustion were practice. 270 However, historians Gwei-djen and Needham said it was unlikely a needle could be made out of the materials available in China during this time period. 29 :71-72 It is possible Bronze was used for early acupuncture needles. Needles.ay be manipulated in various ways, including spinning, in China repeatedly, depending on the country's political leadership and the favour of rationalism or Western medicine. 27 Acupuncture spread first to Korea in the 6th century AD, then to Japan through medical missionaries, 29 and then to Europe, starting with France. 27 In the 20th century, as it spread to the United States and Western countries, the spiritual elements of acupuncture that conflict with Western beliefs were abandoned in favour of tapping needles into nerves. 27 30 31 One type of acupuncture needle Acupuncture is a form of alternative medicine. 2 It is commonly used for pain relief, 10 11 though it is also used to treat a wide range of conditions. 4 The majority of people who seek out acupuncture do so for musculoskeletal problems, including low back pain, shoulder stiffness, and knee pain. 32 Acupuncture is generally only used in combination with other forms of treatment. 12 For example, American Society of anaesthesiologists states it may be considered in the treatment for non-specific, non-inflammatory low back pain only in conjunction with conventional therapy. 33 Acupuncture is the insertion in the skin of thin needles. 3 According to the Mayo Foundation for Medical Education and Research Mayo Clinic, a typical session entails lying still while approximately five to twenty needles are inserted; for the majority of cases, the needles will be left in place for ten to twenty minutes. 34 It can be associated with the application of heat, pressure, or laser light . 3 Classically, acupuncture is individualized and based on philosophy and intuition, and not on scientific research. 35 There is also a non-invasive therapy developed in early 20th century Japan using an elaborate set of “needles” for the treatment of children shōnishin or shōnihari. 36 37 Clinical practice varies depending on the country. 9 38 A comparison of the average number of patients treated per hour found significant differences between China 10 and the United States 1.2. 39 Chinese herbs are often used. 40 There is a diverse range of acupuncture approaches, involving different philosophies. 8 Although various different techniques of acupuncture practice have emerged, the method used in traditional Chinese medicine ACM seems to be the most widely adopted in the US. 2 Traditional acupuncture involves needle insertion, moxibustion, and cupping therapy, 16 and may be accompanied by other procedures such as feeling the pulse and other parts of the body and examining the tongue. 2 Traditional acupuncture involves the belief that a “life force” qi circulates within the body in lines called meridians. 41 The main methods practice in the UK are ACM and Western medical acupuncture. 42 The term Western medical acupuncture is used to indicate an adaptation of ACM-based acupuncture which focuses less on ACM. 41 43 The Western medical acupuncture approach involves using acupuncture after a medical diagnosis. 41 Limited research has compared the contrasting acupuncture systems used in various http://acunova.dk/menstruationssmerter/ countries for determining different acupuncture points and thus there is no defined standard for acupuncture points. 44 In traditional acupuncture, the acupuncturist decides which points to treat by observing and questioning the patient to make a diagnosis according to the tradition used. Infection is caused by a lack of sterilization, but at that time it was believed to be caused by use of the wrong needle, or Texts dated to be from 156–186 BC document early beliefs in channels of life force energy called meridians that would later be an element in early acupuncture beliefs. 267 Ramey and quell said the “practice and theoretical underpinnings” of modern acupuncture were introduced in the Yellow Emperor's Classic Huangdi Beijing around 100 BC. 28 267 It introduced the concept of using acupuncture to manipulate the flow of life energy qi in a network of meridian channels in the body. 267 272 The network concept was made up of acu-tracts, such as a line down the arms, where it said acupoints were located. Medical acupuncture attempts to integrate reflexological concepts, the trigger point model, and anatomical insights such as dermatome distribution into acupuncture practice, and emphasizes a more formulaic approach to acupuncture point location. 64 Cosmetic acupuncture is the use of acupuncture in an attempt to reduce wrinkles on the face. 65 Bee venom acupuncture is a treatment approach acupuncture practices as well. 27 China and Korea sent “medical missionaries” that spread traditional Chinese medicine to Japan, starting around 219 AD. Around.his time the surgeon-general of the Dutch East India Company met Japanese and Chinese acupuncture practitioners and later encouraged Europeans to further investigate it. 29 :264-265 He published the first in-depth description of acupuncture for the European audience and created the term “acupuncture” in his 1683 work De acupuncture. 269 France was an early adopter among the West due to the influence of Jesuit missionaries, who brought the practice to French clinics in the 16th century. 27 The French doctor Louis Berlioz the father : 10.1093/rheumatology/ken161 . Korean acupuncture uses copper needles and has a greater focus on the hand. 38 The as electrical pulses were found to make a frog's leg twitch after death. 269 The West eventually created a belief system based on travel trigger points that were believed to inhibit pain..>They.ere.n.he.ame.ocaFions.s.hina's.piritually.dentified acupuncture points, but under a different nomenclature. 27 The first elaborate Western treatise on acupuncture was published that curing diseases relied on the alignment of both heavenly then and earthly ti forces that were attuned to cycles like that of the sun and moon. 29 :140-141 There were several belief systems that relied on a number of celestial and earthly bodies or elements that rotated and only bbecame aligned at certain times. 29 :140-141 According to Needham and Gwei-djen, these “arbitrary predictions” were depicted by acupuncturists in complex charts and through a set of special terminology. 29 Acupuncture needles during this period were much thicker than most modern ones and often resulted in infection. It.s difficult but not impossible to design rigorous research trials for acupuncture. 69 70 Due to acupuncture's invasive nature, one of the major challenges in efficacy research is in the design of an appropriate placebo control group . 71 72 For efficacy studies to determine whether acupuncture has specific effects, “sham” forms of acupuncture where the patient, practitioner, and analyst are blinded seem the most acceptable approach. 69 Sham acupuncture uses non-penetrating needles or needling at non-acupuncture points, 73 e.g. inserting needles on meridians not related to the specific condition being studied, the body, and eventually to balancing Yin and Yang energies as well. 28 According to Dr. It.as.acer revealed that the patient had been given a cocktail of aesthetics. 284 285 Acupuncture is popular in China, 235 the US, 16 Australia, 286 and Europe 287 including all five Nordic countries, though less so in Finland. 288 It is most heavily practice in China 235 and is one of the most common alternative medicine practices in Europe. 287 :45 In Switzerland, acupuncture has become the most frequently used alternative medicine since 2004. 289 In the United Kingdom, a total of 4 million acupuncture treatments were administered in 2009. 290 Acupuncture is used in most pain clinics and hospices in the UK. 41 An estimated 1 in 10 adults in Australia used acupuncture in 2004. 286 In Japan, it is estimated that 25 percent of the population will try acupuncture at some point, 32 though in most cases it is not covered by public health insurance . 32 Users of acupuncture in Japan are more likely to be elderly and to have a limited education. 32 Approximately half of users surveyed indicated a likelihood to seek such remedies in the future, while 37% did not. 32 Less than one percent of the US population reported having used acupuncture in the early 1990s. 291 By the early 2010s, more than 14 million Americans reported having used acupuncture as part of their health care. 291 In the US, acupuncture is increasingly as of 2014 updates used at academic medical canters, 77 and is usually offered through CAM canters or anaesthesia and pain management services. 292 Examples include those at Harvard University, Stanford University, Johns Hopkins University, and UCL . auscultation and olfaction, inquiring, and palpation. Acupuncture.ecame.he most popular alternative medicine in the US. 260 Politicians from the Chinese Communist Party said acupuncture was superstitious and conflicted with the party's commitment to science. 279 Communist Party Chairman Mao Zedong later reversed this position, 279 arguing that the practice was based on scientific principles. 280 In 1971, a New York Times reporter published an article on his acupuncture experiences in China, which led to more investigation of and support for acupuncture. 27 The US President Richard Nixon visited China in 1972 . 281 During one part of the visit, the delegation was shown a patient undergoing major surgery while fully awake, ostensibly receiving acupuncture rather than anaesthesia . 281 Later it was found that the patients selected for the surgery had both a high pain tolerance and received heavy indoctrination before the many governments have adopted similar standards. 299 In China, the practice of acupuncture is regulated by the Chinese Medicine Council that was formed in 1999 by the Legislative Council. Acupuncture.Tote..s. form of alternative medicine 2 in which thin needles are inserted into the body. 3 It is a key component of traditional Chinese medicine ACM. 4 ACM theory and practice are not based upon scientific knowledge, 5 and acupuncture is a pseudo-science . 6 7 There is a diverse range of acupuncture theories based on different philosophies, 8 and techniques vary depending on the country. 9 The method used in ACM is likely the most widespread in the US. 2 It is most often used for pain relief, 10 11 though it is also used for a wide range of other conditions. 4 Acupuncture is generally used only in combination with other forms of treatment. 12 The conclusions of many trials and numerous systematic reviews of acupuncture are largely inconsistent. 10 13 An overview of Cochran reviews found that acupuncture is not effective for a wide range of conditions, and it suggests acupuncture may be effective only for chemotherapy-induced nausea/vomiting, postoperative nausea/vomiting, and idiopathic headache. 13 A systematic review of systematic reviews found little evidence of acupuncture's effectiveness in treating pain. 10 The evidence suggests that short-term treatment with acupuncture does not produce long-term benefits. 14 Some research results suggest acupuncture can alleviate pain, though the majority of research suggests that acupuncture's effects are mainly due to placebo . 9 A systematic review concluded that the analgesic effect of acupuncture seemed to lack clinical relevance and could not be clearly distinguished from bias. 15 Acupuncture is generally safe when done by an appropriately trained practitioner using clean needle technique and single-use needles. 16 17 When properly delivered, it has a low rate of mostly minor adverse effects . 3 16 Accidents and infections are associated with infractions of sterile technique or neglect of the practitioner. 17 A review stated that the reports of infection transmission increased significantly in the prior decade. 18 The most frequently reported adverse events were pneumothorax and infections. 10 Since serious adverse events continue to be reported, it is recommended that acupuncturists be trained sufficiently to reduce the risk. 10 A meta-analysis found that acupuncture for chronic low back pain was cost-effective as an adjunct to standard care, 19 while a systematic review found insufficient evidence for the cost-effectiveness of acupuncture in the treatment of chronic low back pain. 20 Scientific investigation has not found any histological or physiological evidence for traditional Chinese concepts such as qi, meridians, and acupuncture points, n 1 24 and many modern practitioners no longer support the existence of life force energy qi flowing through meridians, which was a major part of early belief systems. 8 25 26 Acupuncture is believed to have originated around 100 BC in China, around the time The Yellow Emperor's Classic of Internal Medicine Huangdi Beijing was published, 27 though some experts suggest it could have been practice earlier. 9 Over time, conflicting claims and belief systems emerged about the effect of lunar, celestial and earthly cycles, yin and yang energies, and a body's “rhythm” on the effectiveness of treatment. 28 Acupuncture grew and diminished in popularity 29 :71 However, it is more likely that stones were used for other medical purposes, such as puncturing a growth to drain its pus . 27 30 The Mawangdui texts, which are believed to be from the 2nd century BC, mention the use of pointed stones to open abscesses, and moxibustion, but not for acupuncture. 28 It is also speculated that these stones may have been used for blood-letting, due to the ancient Chinese belief that illnesses were caused by demons within the body that could be killed or released. 269 It is likely blood-letting was an antecedent to acupuncture. 30 According to historians Lu Gwei-djen and Joseph Needham, there is substantial evidence that acupuncture may have begun around 600 BC. 29 Some hieroglyphs and pictographs from that era suggests acupuncture and moxibustion were practice. 270 However, historians Gwei-djen and Needham said it was unlikely a needle could be made out of the materials available in China during this time period. 29 :71-72 It is possible Bronze was used for early acupuncture needles.