[A fatal case of streptococcal toxic shock-like syndrome probably caused by acupuncture]

A Cumulative Review of the Range and Incidence of Significant Adverse Events Associated with Acupuncture

Objective

To summarise the range and frequency of significant adverse events associated with acupuncture in order to provide evidence on which to base continuing efforts to improve the safety of acupuncture practice.

Methods

Searches were conducted of computerised databases, previous reviews of case reports, population surveys, prospective surveys of acupuncture practice and relevant sections of textbooks for primary and secondary reports to indicate the range of significant adverse events associated with acupuncture. Data from prospective surveys of acupuncture were combined to estimate the incidence of serious adverse events.

Results

A total of 715 adverse events was included. There were 90 primary reports of trauma, and 186 secondary reports; the most common were pneumothorax and injury to the central nervous system. Infection accounted for 204 primary reports and 91 secondary reports. Over 60% of these cases were hepatitis B. The next most common infection was of the external ear, as a complication of auricular acupuncture. The 144 miscellaneous events mainly comprised seizures and drowsiness judged severe enough to cause a traffic hazard. There were 12 primary reports of deaths. According to the evidence from 12 prospective studies which surveyed more than a million treatments, the risk of a serious adverse event with acupuncture is estimated to be 0.05 per 10 000 treatments, and 0.55 per 10 000 individual patients.

Conclusions

The risk of serious events occurring in association with acupuncture is very low, below that of many common medical treatments. The range of adverse events reported is wide and some events, specifically trauma and some episodes of infection, are likely to be avoidable.

Necrotising fasciitis after acupuncture treatment in an immunocompetent patient

A 42-year old male with no significant medical history was admitted to our hospital with a painful, red, swollen right arm and fever. The rash and swelling had started in the cubital fossa. 7 days earlier, needles had been placed exactly at that site during an acupuncture treatment. After deterioration of his condition, surgical exploration of the arm revealed necrotising fasciitis. Although acupuncture is a relatively safe intervention, serious complications do occur. Necrotising fasciitis after acupuncture has been described in immunocompromised patients. To the best of our knowledge this is the first immunocompetent patient with necrotising fasciitis and toxic shock, caused by acupuncture.

An autopsy case of vagus nerve stimulation following acupuncture

Acupuncture is one of the most popular oriental medical techniques in China, Korea and Japan. This technique is also popular as alternative therapy in the Western World. Serious adverse events are rare following acupuncture, and fatal cases have been rarely reported. A male in his late forties died right after acupuncture treatment. A medico-legal autopsy disclosed severe haemorrhaging around the right vagus nerve in the neck. Other organs and laboratory data showed no significant findings. Thus, it was determined that the man could have died from severe vagal bradycardia and/or arrhythmia resulting from vagus nerve stimulation following acupuncture. To the best of our knowledge, this is the first report of a death due to vagus nerve injury after acupuncture.

Infected compartment syndrome after acupuncture

We present a case of septicaemia and compartment syndrome of the leg in a diabetic patient, following acupuncture to his calf. An emergency decompression fasciotomy was performed on the patient and gram-positive cocci were grown from the posterior compartment wound swab cultures and group A streptococcus from his blood cultures. He remained in the Intensive Therapy Unit postoperatively, requiring inotropic support and intravenous antibiotics for his septicaemia. We would like to remind acupuncturists, to consider the possibility of heightened risks in immunocompromised patients.

Systematic review of adverse events following acupuncture: the Japanese literature

CONTEXT

Many Japanese cases of adverse events after acupuncture are not listed in medical databases such as Medline. Therefore, they are not easily accessible to researchers outside Japan.

OBJECTIVE

To complement existing reviews of adverse events after acupuncture in the West and to provide more detailed discussion and analysis.

DATA SOURCES

Literature search using 'Igaku Chuo Zasshi (Japana Centra Revuo Medicina) CD-ROM version' covering the period of 1987-1999.

STUDY SELECTION

Case reports of adverse events, which were suspected to be due to acupuncture treatment, were included. Experimental studies, surveys, and news articles were excluded.

DATA EXTRACTION

Two independent reviewers extracted data from located articles in a pre-defined structured way, and assessed likelihood of causality in each individual case.

DATA SYNTHESIS

89 articles which reported 124 cases were located. The most frequent adverse events were: pneumothorax (25 cases), spinal cord injury (18 cases), acute hepatitis B (11 cases), and localized argyria (10 cases). There were two fatalities from infections. Forty-eight events were caused by needle breakage including 26 cases of intentionally embedded needle and 16 cases of accidental breakage. There were also 10 cases of injury from self-treatment.

CONCLUSION

Although it has already been demonstrated that severe adverse events seem to be uncommon in standard practice, many serious cases of negligence have been found in the present review, suggesting that training system for acupuncturists (including medical doctors) should be improved and that unsupervised self-treatment should be discouraged.