Why the study?
Does elective direct current cardioversion cause myocardial damage in patients with chronic atrial fibrillation/flutter?
Does elective direct current cardioversion cause myocardial damage in patients with chronic atrial fibrillation/flutter?
Elective direct current cardioversion does not cause myocardial damage, as evidenced by undetectable cardiac troponin T levels post-procedure.
Undetectable troponin T supports lack of myocardial damage from elective DC cardioversion; hypothesis-generating in this small cohort and requires prospective validation.
AIM: To determine whether elective direct current (dc) cardioversion of atrial fibrillation/flutter causes myocardial damage. METHODS AND RESULTS: Cardiac 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. CONCLUSION: Cardiac damage does not occur as a result of cardioversion.
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Rao et al. (1998) studied this question.
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