PMID: 11907001Mar 22, 2002Paper

Effect of multisite pacing on ventricular coordination

Heart
C VarmaS J D Brecker

Abstract

To determine the effect of multisite pacing on left ventricular function. Prospective observational study. 18 patients with heart failure with a dilated poorly functioning left ventricle (LV) and left bundle branch block. Pacing for 5 minutes in random order at the right ventricle (RV) apex, RV outflow tract, mid posterolateral LV, RV apex and LV simultaneously, and RV outflow tract and LV simultaneously. The best achieved measurements with RV, LV, and biventricular pacing were compared. LV dimension, filling characteristics, and long axis indices were measured on echocardiography simultaneously with LV pressure. Cycle efficiency (%)--that is, the ratio of the area of the acquired pressure dimension loop to that of the ideal loop for that segment--quantified coordination. The pacing site that gave the best achieved cycle efficiency differed between patients (biventricular in five, LV in two, RV in seven, and no site in four). In patients with baseline incoordination (cycle efficiency < or = 72%, n = 12) cycle efficiency improved significantly with RV pacing (cycle efficiency 76%, p = 0.01) but not with LV (65%) or biventricular (67%) pacing. LV based pacing induced premature short axis contraction in a subset of patients (n = 4...Continue Reading

References

Apr 1, 1990·British Heart Journal·C J JonesD G Gibson
Aug 1, 1988·The American Journal of Cardiology·R L WilenskyW C Roberts
Oct 1, 1995·Journal of the American College of Cardiology·M R GoldM L Fisher
Nov 1, 1994·Pacing and Clinical Electrophysiology : PACE·S CazeauJ Mugica
Nov 1, 1994·Pacing and Clinical Electrophysiology : PACE·G GuardigliG E Antonioli
Jun 1, 1996·European Heart Journal·S J Brecker, D G Gibson
Nov 1, 1996·Pacing and Clinical Electrophysiology : PACE·S CazeauJ Mugica

❮ Previous
Next ❯

Citations

Feb 25, 2003·Journal of the American College of Cardiology·Chetan VarmaUNKNOWN Multisite Stimulation in Cardiomyopathy (MUSTIC) Study Group
Oct 30, 2008·Netherlands Heart Journal : Monthly Journal of the Netherlands Society of Cardiology and the Netherlands Heart Foundation·C C de Cock
Dec 16, 2006·Pacing and Clinical Electrophysiology : PACE·Luigi PadelettiDouglas A Hettrick
Jan 12, 2013·Pacing and Clinical Electrophysiology : PACE·Luigi PadelettiSergio Valsecchi
Apr 27, 2005·Heart Rhythm : the Official Journal of the Heart Rhythm Society·Anne M Gillis, Mina K Chung
Dec 15, 2015·Phytomedicine : International Journal of Phytotherapy and Phytopharmacology·Subha RastogiA K S Rawat
Nov 13, 2007·The American Journal of Cardiology·Luigi PadelettiDouglas A Hettrick
Dec 10, 2008·The American Journal of Cardiology·Luigi PadelettiSergio Valsecchi
May 17, 2012·Circulation. Arrhythmia and Electrophysiology·Luigi PadelettiSergio Valsecchi
Dec 18, 2003·Journal of Cardiovascular Electrophysiology·Peter A Brady, Stephen C Hammill

❮ Previous
Next ❯

Related Concepts

Related Feeds

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.

Related Papers

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
A CapucciF De Seta
© 2022 Meta ULC. All rights reserved