Brief report
Effect of an irregular ventricular rhythm on cardiac output

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Abstract

The results of this study suggest that a third mechanism for the reduction of cardiac output in patients with AF is irregularity of the ventricular rhythm. Catheter ablation of the AV junction and implantation of a rate-responsive pacemaker in patients with AF may offer hemodynamic benefit beyond rate control by eliminating the irregularity that is present with medical therapy or after radiofrequency modification of the AV node.

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Dr. Daoud's address is: University of Michigan Hospital, Division of Cardiology; B1-F245, 1500 East Medical Center Drive, Ann Arbor, Michigan 48109-0022.

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