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Efficacy of Acupuncture in Preventing Atrial Fibrillation Recurrences After Electrical Cardioversion.

06:00 EDT 3rd September 2010 | BioPortfolio

Summary of "Efficacy of Acupuncture in Preventing Atrial Fibrillation Recurrences After Electrical Cardioversion."

Antiarrhythmic Effect of Acupuncture. Introduction: In traditional Chinese medicine, stimulation of the Neiguan spot has been utilized to treat palpitations. We evaluated whether acupuncture might prevent or reduce the rate of arrhythmia recurrences in patients with persistent atrial fibrillation (AF). Methods and Results: We studied 80 patients with persistent AF after restoring sinus rhythm with electrical cardioversion. Twenty-six subjects who were already on amiodarone treatment constituted the AMIO reference group. The remaining patients were randomly allocated to receive acupuncture (ACU group, n = 17), sham acupuncture (ACU-sham group, n = 13), or neither acupuncture nor antiarrhythmic therapy (CONTROL group, n = 24). Patients in the ACU and ACU-sham groups attended 10 acupuncture sessions on a once-a-week basis. Only in the former group the Neiguan, Shenmen, and Xinshu spots were punctured. During a 12-month follow-up, AF recurred in 35 patients. Cumulative AF recurrence rates in the AMIO, ACU, ACU-sham, and CONTROL patients were 27%, 35%, 69%, and 54%, respectively (P = 0.0075, log-rank test). Ejection fraction (P = 0.0005), hypertension (0.0293), and left atrial diameter (P = 0.0361) were also significantly associated with AF recurrence. Compared with AMIO group, recurrence rate was similar in ACU patients (hazard ratio: 1.15, 95%
CI:
0.38-3.49; P = 0.801) but significantly higher in ACU-sham and CONTROL patients (3.77, 1.39-10; P = 0.009 and 3.15, 1.23-8.06; P = 0.017, respectively) after adjustment for ejection fraction, hypertension, and left atrial diameter using Cox modeling. Conclusion: Our data indicate that acupuncture treatment prevents arrhythmic recurrences after cardioversion in patients with persistent AF. This minimally invasive procedure was safe and well tolerated. (J Cardiovasc Electrophysiol, Vol. pp. 1-7).

Affiliation

Cardiologia, Osp. San Paolo, Dipartimento di Medicina, Chirurgia e Odontoiatria, Università degli Studi di Milano, Milan, Italy.

Journal Details

This article was published in the following journal.

Name: Journal of cardiovascular electrophysiology
ISSN: 1540-8167
Pages:

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Medical and Biotech [MESH] Definitions

Rapid, irregular atrial contractions caused by a block of electrical impulse conduction in the right atrium and a reentrant wave front traveling up the inter-atrial septum and down the right atrial free wall or vice versa. Unlike ATRIAL FIBRILLATION which is caused by abnormal impulse generation, typical atrial flutter is caused by abnormal impulse conduction. As in atrial fibrillation, patients with atrial flutter cannot effectively pump blood into the lower chambers of the heart (HEART VENTRICLES).

Long-term changes in the electrophysiological parameters and/or anatomical structures of the HEART ATRIA that result from prolonged changes in atrial rate, often associated with ATRIAL FIBRILLATION or long periods of intense EXERCISE.

A cardiotonic glycoside obtained mainly from Digitalis lanata; it consists of three sugars and the aglycone DIGOXIGENIN. Digoxin has positive inotropic and negative chronotropic activity. It is used to control ventricular rate in ATRIAL FIBRILLATION and in the management of congestive heart failure with atrial fibrillation. Its use in congestive heart failure and sinus rhythm is less certain. The margin between toxic and therapeutic doses is small. (From Martindale, The Extra Pharmacopoeia, 30th ed, p666)

Abnormal cardiac rhythm that is characterized by rapid, uncoordinated firing of electrical impulses in the upper chambers of the heart (HEART ATRIA). In such case, blood cannot be effectively pumped into the lower chambers of the heart (HEART VENTRICLES). It is caused by abnormal impulse generation.

A potentially lethal cardiac arrhythmia that is characterized by uncoordinated extremely rapid firing of electrical impulses (400-600/min) in HEART VENTRICLES. Such asynchronous ventricular quivering or fibrillation prevents any effective cardiac output and results in unconsciousness (SYNCOPE). It is one of the major electrocardiographic patterns seen with CARDIAC ARREST.

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