Abstract
Using telemetry, right atrial electrogram (RA), and marker channel of atrial sense events (MA) in combination with the left atrial electrogram (LA), recorded by a filtered bipolar esophageal lead, interatrial conduction during submaximal exercise and at rest was examined in 46 DDD pacemaker patients. The RA-LA and MA-LA conduction times measured in the presence of atrial sensing (VDD) as well as the conduction time SA-LA from atrial stimulus (SA) to LA, determined during atrial pacing (DDD) were found to be individual constants independent of exercise induced sympathetic influences. Thus, having determined an optimal mechanical interval (LA-LV)mech/opt from left atrium to ventricle by other methods, the optimal AV delay for DDD as well as for VDD operation can be calculated by the sum of the appropriate interatrial conduction time (SA-LA, respectively MA-LA) and the (LA-LV)mech/opt interval. Due to the constant SA-LA and MA-LA, the difference between these two values (AV delay correction interval) is a constant as well, which remains unchanged during exercise. Therefore, in selecting the rate responsive AV delay, only hemodynamic and not electrophysiological measurements need to be considered.
References
Nov 1, 1986·Pacing and Clinical Electrophysiology : PACE·K AusubelS Furman
Feb 1, 1988·The American Journal of Cardiology·M WishR D Fletcher
Sep 1, 1987·The American Journal of Cardiology·M WishA I Cohen
Apr 1, 1986·Journal of the American College of Cardiology·P F BinkleyC V Leier
Mar 1, 1972·American Heart Journal·S S Barold
Sep 1, 1994·Pacing and Clinical Electrophysiology : PACE·R Chirife
Citations
Oct 27, 2004·Medical & Biological Engineering & Computing·M HexamerJ Werner
Mar 12, 2008·Herzschrittmachertherapie & Elektrophysiologie·T DenekeT Lawo
Jan 27, 2006·Cardiovascular Ultrasound·Christoph MelzerAdrian C Borges
Feb 1, 1998·Herzschrittmachertherapie & Elektrophysiologie·B IsmerH Lüssow
Aug 23, 2012·Expert Review of Cardiovascular Therapy·Reza Rafie, Tasneem Z Naqvi
Aug 18, 2009·Clinical Cardiology·Pin SunShang-Lang Cai
Feb 1, 2008·Pacing and Clinical Electrophysiology : PACE·Raul ChirifeAleksandre Sambelashvili
Jun 17, 2010·Journal of Cardiovascular Electrophysiology·Margot D BogaardMathias Meine
Jan 7, 2011·Pacing and Clinical Electrophysiology : PACE·Vadim LevinAleksandre Sambelashvili
Jun 15, 2013·Pacing and Clinical Electrophysiology : PACE·Raul ChirifeM Cristina Tentori
Jan 13, 2006·Medical Engineering & Physics·Martin HexamerJuergen Werner
Jun 2, 2018·Pacing and Clinical Electrophysiology : PACE·Andreas KyriacouDarrel P Francis
Jan 21, 2000·Pacing and Clinical Electrophysiology : PACE·M MeineJ Barmeyer
Aug 24, 1999·Pacing and Clinical Electrophysiology : PACE·M MeineJ Barmeyer
Mar 16, 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·Christoph MelzerBruno Ismer
Apr 14, 2004·Pacing and Clinical Electrophysiology : PACE·Bernhard StrohmerUNKNOWN ELVIS Study Group