Why the study?
Does direct current conversion with or without antiarrhythmic therapy effectively maintain sinus rhythm in patients with chronic atrial fibrillation?
Population
100 consecutive patients admitted in 1980-82 for direct current conversion of chronic atrial fibrillation (AF)
Design
Cohort
Follow-up
2 years
Authors
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DC cardioversion yields low sinus rhythm maintenance in chronic AF; observational data leave open efficacy of adjunctive antiarrhythmics.
Does direct current conversion with or without antiarrhythmic therapy effectively maintain sinus rhythm in patients with chronic atrial fibrillation?
A first attempt at direct current conversion without antiarrhythmics identifies a substantial proportion of chronic AF patients who maintain sinus rhythm without prophylactic therapy, with diminishing returns after two conversions.
Lundström et al. (1988) studied this question.