Mechanoelectrical Feedback as Novel Mechanism of Cardiac Electrical Remodeling
Author(s) -
Darwin Jeyaraj,
Lance D. Wilson,
Zhong Jia,
Chris A. Flask,
Jeffrey E. Saffitz,
Isabelle Deschênes,
Xin Yu,
David Rosenbaum
Publication year - 2007
Publication title -
circulation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 7.795
H-Index - 607
eISSN - 1524-4539
pISSN - 0009-7322
DOI - 10.1161/circulationaha.107.688317
Subject(s) - ventricle , repolarization , ventricular remodeling , electrophysiology , medicine , ion channel , cardiology , neuroscience , anatomy , heart failure , biology , receptor
Altered electrical activation of the heart by pacing or disease induces profound ventricular electrical remodeling (VER), manifested electrocardiographically as T-wave memory and ultimately as deleterious mechanical remodeling from heterogeneous strain. Although T-wave memory is associated with altered expression of sarcolemmal ion channels, the biophysical mechanisms responsible for triggering remodeling of cardiac ion channels are unknown.
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