Evolution of ventricular function during permanent pacing from either right ventricular apex or outflow tract following AV-junctional ablation for atrial fibrillation

To compare acute and chronic ventricular function between patients, without cardiac failure, paced at either right ventricular apex or outflow tract. Twenty patients. 10 paced apically and 10 in the outflow tract, underwent two radionuclide ventriculograms. Eight parameters of systolic or diastolic...

Full description

Saved in:
Bibliographic Details
Published in:Europace (London, England) England), 2002-07, Vol.4 (3), p.219-228
Main Authors: Bourke, John P, Hawkins, Terry, Keavey, Pauline, Tynan, Margaret, Jamieson, Sheila, Behulova, Renata, Furniss, Stephen S
Format: Article
Language:English
Subjects:
Aged
Atrial Fibrillation - diagnostic imaging
Atrial Fibrillation - physiopathology
Atrial Fibrillation - therapy
Cardiac Pacing, Artificial
Diastole - physiology
Electrocardiography
Female
Gated Blood-Pool Imaging
Humans
Male
Middle Aged
Systole - physiology
Ventricular Function, Left - physiology
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:To compare acute and chronic ventricular function between patients, without cardiac failure, paced at either right ventricular apex or outflow tract. Twenty patients. 10 paced apically and 10 in the outflow tract, underwent two radionuclide ventriculograms. Eight parameters of systolic or diastolic function were compared at each assessment, as were changes within each group over time. No differences were identified in systolic function between pacing sites 6 weeks after pacing or 23 weeks later. Peak filling rate was lower (P=0.04) at the second assessment with outflow tract pacing. No other diastolic differences were identified. Between assessments, time to peak filling rate prolonged (P=0.04) with apical pacing, while left ventricular area reduced (P=0.04) and peak filling rate decreased (P=0.04) with outflow tract pacing. Septal motion was better preserved with outflow tract pacing. No other parameter changed over time. ECG measures were similar at 14.7 months. No major differences were identified in systolic function between pacing sites. Some systolic parameters were better preserved with outflow tract pacing and diastolic function deteriorated subtly over time in both groups. Right ventricular pacing adversely affects left ventricular function.
ISSN:1099-5129
DOI:10.1053/eupc.2002.0238