PMID: 9654222Jul 8, 1998Paper

Effect of electrode length on atrial defibrillation thresholds

Journal of Cardiovascular Electrophysiology
C TimmermansH J Wellens

Abstract

Catheter-based electrodes have been used previously to terminate episodes of atrial fibrillation in animals and man. Typically, these electrodes span 6 to 7 cm, and lowest energy requirements are achieved when these electrodes are positioned in the distal coronary sinus and in the right atrium. The purpose of this study was to evaluate the use of longer electrode lengths for atrial defibrillation. In 15 patients, two decapolar catheters were inserted, one into the distal coronary sinus and one in the right atrium. To provide longer electrodes lengths, a third catheter was inserted and alternated positioned in the right atrium or coronary sinus. A 6-cm electrode span was obtained by using the distal 8 rings on the coronary sinus catheter or 8 consecutive electrodes on the right atrial catheter and increased from 6 to 11 cm by connecting 5 consecutive, nonoverlapping rings of the third catheter with the 10 rings of the initial right atrial or coronary sinus catheter. Atrial defibrillation thresholds were determined twice, in a randomized order, in each patient for each of the three combinations of electrode lengths. All 15 patients could be successfully converted to sinus rhythm without complications; however, one patient could b...Continue Reading

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Citations

Oct 20, 1999·Clinical Cardiology·H F TseA J Camm
Aug 10, 1999·Journal of the American College of Cardiology·M CooklinM R Gold
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Eric J RashbaMichael R Gold
May 30, 2006·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Eric J RashbaMichael R Gold
Mar 25, 1999·The American Journal of Cardiology·A Heisel, J Jung
Jul 15, 2004·Journal of Cardiovascular Electrophysiology·Eric J RashbaMichael R Gold
Mar 14, 2007·Europace : European Pacing, Arrhythmias, and Cardiac Electrophysiology : Journal of the Working Groups on Cardiac Pacing, Arrhythmias, and Cardiac Cellular Electrophysiology of the European Society of Cardiology·M C E F WijffelsL M Rodriguez

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