Defibrillation efficacy and pain perception of two biphasic waveforms for internal cardioversion of atrial fibrillation.

Unlabelled: Efficacy and Pain Perception of Two Biphasic Waveforms.

Introduction: We evaluated the influence of the peak voltage of waveforms used for internal cardioversion of atrial fibrillation on defibrillation efficacy and pain perception. A low peak voltage biphasic waveform generated by a 500-microF capacitor with 40% tilt was compared to a standard biphasic waveform generated by a 60-microF capacitor with 80% tilt.