PMID: 9316536Oct 8, 1997Paper

Hemodynamic effects of an irregular sequence of ventricular cycle lengths during atrial fibrillation

Journal of the American College of Cardiology
D M ClarkG N Kay

Abstract

The aim of this study was to determine the independent hemodynamic effects of an irregular sequence of ventricular cycle lengths in patients with atrial fibrillation (AF). Atrial fibrillation may reduce cardiac output by several possible mechanisms, including loss of the atrial contribution to left ventricular filling, valvular regurgitation, increased ventricular rate or irregular RR intervals. This study was designed to evaluate the effects of an irregular RR interval, independent of the average ventricular rate, on cardiac hemodynamic data during AF. Sixteen patients with AF were studied invasively. During intrinsically conducted AF (mean rate 102 +/- 22 beats/ min), the right ventricular apex electrogram was recorded onto frequency-modulated (FM) tape. After atrioventricular node ablation, the right ventricular apex was stimulated in three pacing modes in randomized sequence: 1) VVI at 60 beats/min; 2) VVI at the same average rate as during intrinsically conducted AF (102 +/- 22 beats/min); and 3) during VVT pacing in which the pacemaker was triggered by playback of the FM tape recording of the right ventricular apex electrogram previously recorded during intrinsically conducted AF (VVT 102 +/- 22 beats/min). Compared with ...Continue Reading

References

Jan 1, 1989·Journal of the American Society of Echocardiography : Official Publication of the American Society of Echocardiography·J W CooperP Fan
Mar 1, 1988·The American Journal of Cardiology·K P KunzeK H Kuck
Jan 1, 1973·Journal of Electrocardiology·W H Herbert
Feb 1, 1973·Circulation·P SAMET
Oct 1, 1968·The Journal of Clinical Investigation·J C GreenfieldA G WALLACE
Jan 28, 1982·The New England Journal of Medicine·J J GallagherG Critelli
Mar 1, 1964·The American Journal of Medicine·N S SKINNERS J SARNOFF
Feb 1, 1965·The American Journal of Cardiology·P SAMETS LEVINE
Jul 6, 1935·British Medical Journal·T East

Citations

Jan 13, 2009·Herz·Florian StraubeEllen Hoffmann
Apr 24, 2007·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Uta C Hoppe
Jul 29, 2009·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·John SilberbauerNeil Sulke
Oct 26, 2012·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Khang-Li LooiDavid Begley
Apr 30, 2013·Journal of Interventional Cardiac Electrophysiology : an International Journal of Arrhythmias and Pacing·Zekeriya KucukdurmazKazuo Matsumoto
May 25, 2007·Current Heart Failure Reports·Nazem Akoum, M H Hamdan
Nov 1, 2002·Current Treatment Options in Cardiovascular Medicine·B. John HynesGerald V. Naccarelli
Sep 6, 2005·Current Treatment Options in Cardiovascular Medicine·Brian Olshansky
Jul 4, 2013·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·M Martínez-SellésF Fernández-Aviles
Nov 11, 1998·The American Journal of Cardiology·B Schumacher, B Lüderitz
Jul 20, 2001·International Journal of Cardiology·J A ChiladakisA S Manolis
Jul 18, 2000·Journal of the American College of Cardiology·M H HamdanM L Smith
Feb 24, 2001·Journal of the American College of Cardiology·S S ChughB J Gersh
Apr 17, 2002·Journal of the American College of Cardiology·Il Sung KimMitsuhiro Yokota
Jul 11, 2002·Journal of the American College of Cardiology·Kenneth M SteinJewel AF Worldwide Investigators
May 27, 2003·Pacing and Clinical Electrophysiology : PACE·Yoshihide TakahashiAblation and Pacing Therapy Working Group
Sep 16, 1999·The New England Journal of Medicine·William G Stevenson, L W Stevenson
Dec 3, 2004·The New England Journal of Medicine·Richard L Page
Dec 3, 2004·The New England Journal of Medicine·Li-Fern HsuMichel Haissaguerre
Jun 28, 2002·The New England Journal of Medicine·Joshua M CooperMichael V Orlov
Apr 14, 2009·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·Hung-Fat TseChu-Pak Lau
Aug 4, 2009·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·Jane C CaldwellMamas A Mamas
Dec 3, 2009·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·Chung-Wah SiuHung-Fat Tse
Jul 26, 2011·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·Georg NölkerJohannes Brachmann
Nov 16, 2011·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·Emmanuel N SimantirakisPanos E Vardas
Mar 6, 2012·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·Hugh CalkinsDavid Wilber
Apr 16, 2013·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·Agustín BortoneEloi Marijon
Dec 20, 2007·Cardiology in Review·Ahmad ZankarR Haris Naseem
Dec 17, 2009·Cardiology in Review·Jens Seiler, William G Stevenson
Jul 2, 2002·Progress in Cardiovascular Nursing·Pamela J McCabe, Susan Geoffroy
Jul 26, 2011·Clinical and Experimental Pharmacology & Physiology·Bastiaan J BoukensSatoshi Higa
Feb 6, 2002·Congestive Heart Failure·M S Matalka, P C Deedwania
May 11, 1999·Pacing and Clinical Electrophysiology : PACE·J K LeeN M Van Hemel
Sep 19, 2012·Dementia and Geriatric Cognitive Disorders·Francesco CacciatorePasquale Abete
Aug 18, 2004·Critical Care : the Official Journal of the Critical Care Forum·Hoong Sern LimGregory Y H Lip
Nov 27, 2007·Critical Care : the Official Journal of the Critical Care Forum·Mengalvio E SleeswijkJan G Zijlstra

Related Concepts

Related Feeds

Atrial Fibrillation

Atrial fibrillation is a common arrhythmia that is associated with substantial morbidity and mortality, particularly due to stroke and thromboembolism. Here is the latest research.

Cardiology Journals

Discover the latest cardiology research in this collection of the top cardiology journals.

Atrial Filbrillation

Atrial fibrillation refers to the abnormal heart rhythm characterized by rapid and irregular beating of the atria. Here is the latest research.

Arrhythmia

Arrhythmias are abnormalities in heart rhythms, which can be either too fast or too slow. They can result from abnormalities of the initiation of an impulse or impulse conduction or a combination of both. Here is the latest research on arrhythmias.