Association Between Left Ventricular Ejection Fraction Post-Cardiac Resynchronization Treatment and Subsequent ICD Therapy for Sustained Ventricular Tachyarrhythmias

Study Questions:

What is the association between left ventricular ejection fraction (LVEF) after cardiac resynchronization therapy (CRT) treatment and future appropriate ICD therapy for sustained ventricular tachycardia and ventricular fibrillation?