A review paper by American authors supports the use of acupuncture for cardiac arrhythmias. In the eight published studies they reviewed, between 87% and 100% of patients converted to normal sinus rhythm after acupuncture treatment. The limited quality of current studies however, calls for further controlled clinical trials with standardized treatment protocols, diverse patient populations, and long-term follow-up.
(The Effects of Acupuncture on Cardiac Arrhythmias: a Literature Review. Heart Lung, Nov-Dec 2008.)