Discrimination of antegrade and retrograde atrial depolarization by electrogram analysis

American Heart Journal
F PannizzoS Furman

Abstract

The inability of cardiac pacemakers to selectively reject retrograde P waves limits the usefulness of dual-chamber pacemakers (because of the possibility of endless loop tachycardias) and of antitachycardia devices which use a dual-chamber sensing algorithm. In order to determine selective sensing parameters, amplitude, slew rate, and configuration of antegrade and retrograde atrial electrograms were measured in 34 patients undergoing dual-chamber pacemaker implant--31 with unipolar and three with bipolar units. All antegrade and retrograde pairs were measurably different. All 34 cases had measurable antegrade/retrograde amplitude differences; 30 of the unipolar cases (96.8%) and all bipolar cases displayed antegrade/retrograde amplitude differences of at least 0.25 mV. Thirty of the unipolar cases (96.8%) and two bipolar cases had measurable slew rate differences. Configuration differed in 14 of 31 (45.2%) of unipolar and in two bipolar cases. A combined criterion with 0.25 mV sensitivity steps (available in at least two presently available pacemakers) and 0.5 V/sec slew rate gradations (through the use of externally programmable filters) would allow the discrimination of retrograde from antegrade depolarizations in all 34 cas...Continue Reading

References

Jun 1, 1977·American Heart Journal·S FurmanV De Caprio
Sep 1, 1981·Pacing and Clinical Electrophysiology : PACE·M Akhtar
Jul 1, 1982·Pacing and Clinical Electrophysiology : PACE·K Den DulkH J Wellens
Jul 1, 1982·Pacing and Clinical Electrophysiology : PACE·S Furman, J D Fisher
Jan 1, 1983·Pacing and Clinical Electrophysiology : PACE·D L Hayes, S Furman
Mar 1, 1983·Pacing and Clinical Electrophysiology : PACE·S LévyR Gérard
Mar 1, 1983·Pacing and Clinical Electrophysiology : PACE·A Ripart, G Pioger
Mar 1, 1983·Pacing and Clinical Electrophysiology : PACE·H Elmqvist
Sep 1, 1983·Journal of the American College of Cardiology·M ShenasaM Akhtar

❮ Previous
Next ❯

Citations

Feb 1, 1991·Pacing and Clinical Electrophysiology : PACE·L A DiCarloJ M Jenkins
Dec 11, 1997·Pacing and Clinical Electrophysiology : PACE·F Di GregorioA Vincenti
Jul 24, 2014·Pacing and Clinical Electrophysiology : PACE·Fariha Sadiq AliAdrian Baranchuk
Nov 1, 1991·Journal of the American College of Cardiology·L S KleinD P Zipes
Dec 1, 1988·The American Journal of Medicine·S S BaroldR A Heinle
Oct 1, 1989·Pacing and Clinical Electrophysiology : PACE·R D ThroneL A DiCarlo
Nov 1, 1988·Pacing and Clinical Electrophysiology : PACE·H F McAlisterS Furman
Apr 1, 1988·Pacing and Clinical Electrophysiology : PACE·L S Dreifus

❮ Previous
Next ❯

Related Concepts

Related Feeds

Cardiac Conduction System

The cardiac conduction system is a specialized tract of myocardial cells responsible for maintaining normal cardiac rhythm. Discover the latest research on the cardiac conduction system here.

Related Papers

Pacing and Clinical Electrophysiology : PACE
H F McAlisterS Furman
Pacing and Clinical Electrophysiology : PACE
J C Griffin
Journal of the American College of Cardiology
P T Klementowicz, S Furman
Emergency Medicine Clinics of North America
S Syverud
© 2021 Meta ULC. All rights reserved