Effect of acute unloading via head-up tilt on QTc prolongation in patients with ischemic or non-ischemic cardiomyopathy.
Publication/Presentation Date
2-1-2006
Abstract
Patients with advanced cardiomyopathy develop prolongations in ventricular myocyte action potential duration that are reflected by prolongations of QT intervals on surface electrocardiograms. Recent studies demonstrate that the placement of a left ventricular (LV) assist device, which induces profound cardiac decompression, acutely increases QT intervals within hours. The goal of this study was to use head-up tilt (HUT) to examine electrocardiographic responses to cardiac unloading in patients with cardiomyopathy. Surface electrocardiograms were analyzed during HUT in 21 patients with cardiomyopathy (ejection fraction
Volume
97
Issue
3
First Page
412
Last Page
415
ISSN
0002-9149
Published In/Presented At
Grzywacz, F. W., Piacentino, V., 3rd, Marble, J., Bozorgnia, B., Gaughan, J. P., Rothman, S. A., & Margulies, K. B. (2006). Effect of acute unloading via head-up tilt on QTc prolongation in patients with ischemic or non-ischemic cardiomyopathy. The American journal of cardiology, 97(3), 412–415. https://doi.org/10.1016/j.amjcard.2005.08.064
Disciplines
Medicine and Health Sciences
PubMedID
16442407
Department(s)
Department of Medicine, Cardiology Division
Document Type
Article