PMID: 11341088May 9, 2001Paper

Effect of the atrial blanking time on the detection of atrial fibrillation in dual chamber pacing

Pacing and Clinical Electrophysiology : PACE
Bernd NowakJ Meyer

Abstract

Patients with paroxysmal atrial fibrillation (PAF) and dual chamber pacemakers frequently have short postventricular atrial blanking times and sensitive atrial sensing thresholds used to provide reliable detection and mode switching during AF. However, short atrial blanking times increase the risk of atrial sensing of ventricular far-field signals. We evaluated if the length of the atrial blanking time influences the detection of AF. The study included ten patients with a VDDR (n = 7) or DDDR system (n = 3), who presented with AF at 18 follow-up visits. Bipolar atrial sensing was programmed to the most sensitive value. Atrial blanking times were programmed from 100 to 200 ms in 25-ms steps in each patient. Using marker annotation, the following parameters were measured at ten consecutive ventricular beats: VAF = the interval between ventricular stimulus and first sensing of AF; AFS = the number of atrial-sensed events between two ventricular events; and XAF = the interpolated number of atrial-sensed events during atrial blanking time. The intervals between ventricular events and between atrial-sensed event markers showed no significant differences for the five blanking times tested. There was no significant influence of the atr...Continue Reading

Citations

May 3, 2007·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·John Silberbauer, Neil Sulke
Jun 30, 2012·PloS One·Christof KolbUNKNOWN AVOID-FFS Investigators
Jul 31, 2008·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·W G de Voogt, N M van Hemel
May 26, 2009·American Heart Journal·UNKNOWN RATE Steering Committee, UNKNOWN RATE Investigators
May 3, 2006·Pacing and Clinical Electrophysiology : PACE·Bernhard StrohmerMaximilian Pichler
Aug 18, 2009·Journal of Cardiovascular Electrophysiology·Emily RoseAnthony Aizer
Jul 6, 2011·International Journal of Cardiology·Chee W KhooGregory Y H Lip
Feb 18, 2005·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Jan-Yow ChenJui-Sung Hung
Sep 5, 2006·Journal of Cardiovascular Electrophysiology·Christof KolbUNKNOWN FFS-Test Study Group
Oct 18, 2006·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·Willem G de VoogtJules H Fast

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