Myocardial Electrotonic Response to Submaximal Exercise in Dogs with Healed Myocardial Infarctions: Evidence for β-Adrenoceptor Mediated Enhanced Coupling during Exercise Testing

Introduction: Autonomic neural activation during cardiac stress testing is an established risk-stratification tool in post-myocardial infarction (MI) patients. However, autonomic activation can also modulate myocardial electrotonic coupling, a known factor to contribute to the genesis of arrhythmi...

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Bibliographic Details
Main Authors: Carlos L del Rio, Bradley D Clymer, George E Billman
Format: Article
Language:English
Published: Frontiers Media S.A. 2015-02-01
Series:Frontiers in Physiology
Subjects:
Online Access:http://journal.frontiersin.org/Journal/10.3389/fphys.2015.00025/full