Heart 1998;80:229-230 ( September )

Direct current cardioversion does not cause cardiac damage: evidence from cardiac troponin T estimation

A C R Rao,^a N Naeem,^a C John,^b P O Collinson,^b R Canepa-Anson,^a S P Joseph^a

^a Department of Cardiology, Mayday University Hospital, Mayday Road, Croydon, Surrey CR7 7YE, UK, ^b Department of Chemical Pathology, Mayday University Hospital

Correspondence to: Dr Joseph.

Accepted for publication 23 February 1998

AimTo determine whether elective direct current (dc) cardioversion of atrial fibrillation/flutter causes myocardial damage.
Methods and resultsCardiac troponin T and creatine kinase were estimated 20-28 hours after dc cardioversion in 51 patients who received dc shocks for elective cardioversion of chronic atrial fibrillation/flutter. Although creatine kinase was raised in 44 patients, cardiac troponin T was undetectable in all patients.
ConclusionCardiac damage does not occur as a result of cardioversion.

Keywords: cardioversion;  troponin T;  creatine kinase;  atrial fibrillation

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© 1998 by Heart
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