Electromechanical Associations

Abstract
The left ventricle strives valiantly with each cardiac cycle to maximize contractility and provide protection against lethal ventricular arrhythmias. Heart failure can make this coordination difficult. Heart-rhythm and heart-failure specialists are increasingly working together to restore nature's performance and lifesaving features to the failing left ventricle. Our jobs are becoming progressively more entwined as we evaluate treatments involving pacemakers and implantable cardioverter–defibrillators (ICDs) in an effort to improve the quality of life and reduce the risk of complications and death among patients with left ventricular systolic dysfunction.Several factors contribute to this new collaboration. First, heart-rhythm specialists acknowledge the dramatic . . .