PMID: 8945041Nov 1, 1996Paper

Exercise induced sympathetic influences do not change interatrial conduction times in VDD and DDD pacing

Pacing and Clinical Electrophysiology : PACE
B IsmerH Luessow

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.

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Citations

Oct 27, 2004·Medical & Biological Engineering & Computing·M HexamerJ Werner
Mar 12, 2008·Herzschrittmachertherapie & Elektrophysiologie·T DenekeT Lawo
Feb 1, 1998·Herzschrittmachertherapie & Elektrophysiologie·B IsmerH Lüssow
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
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

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