• Holger Cramer, Romy Lauche, Heidemarie Haller, Gustav Dobos, and Andreas Michalsen.
• Department of Internal and Integrative Medicine, Kliniken Essen-Mitte, Faculty of Medicine, University of Duisburg-Essen, Essen, Germany h.cramer@kliniken-essen-mitte.de.
• Eur J Prev Cardiol. 2015 Mar 1; 22 (3): 284-95.

BackgroundThis systematic review of randomized controlled trials (RCTs) aimed to evaluate the quality of evidence and the strength of recommendation for yoga as an ancillary intervention for heart disease.MethodsMedline/PubMed, Scopus, the Cochrane Library, and IndMED were searched up to October 2013. Main outcome measures were mortality, nonfatal cardiac events, exercise capacity, health-related quality of life, and modifiable cardiac risk factors. Risk of bias, quality of evidence, and the strength of the recommendation for or against yoga were assessed according to the Cochrane Collaboration and GRADE recommendations.ResultsSeven RCTs with 624 patients comparing yoga to usual care were included. For coronary heart disease (four RCTs), there was very low evidence for no effect on mortality, for a reduced number of angina episodes, and for increased exercise capacity, and low evidence for reduced modifiable cardiac risk factors. For heart failure (two RCTs), there was very low evidence for no effect on mortality, and low evidence for increased exercise capacity, and for no effect on health-related quality of life. For cardiac dysrhythmias treated with implantable cardioverter-defibrillator (one RCT), there was very low evidence for no effect on mortality, and for improved quality, and low evidence for effects on nonfatal device-treated ventricular events. Three RCTs reported safety data and reported that no adverse events occurred.ConclusionsBased on the results of this review, weak recommendations can be made for the ancillary use of yoga for patients with coronary heart disease, heart failure, and cardiac dysrhythmia at this point.© The European Society of Cardiology 2014 Reprints and permissions: sagepub.co.uk/journalsPermissions.nav.

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