Indian heart journal
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Indian heart journal · May 2007
LV based pacing in patients with heart failure and a narrow QRS--an acute hemodynamic study.
Biventricular pacing is beneficial in refractory systolic heart failure having QRS duration more than 130 msec by improving regional dysynchrony and decreasing diastolic mitral regurgitation. Current data show significant systolic dysynchrony in symptomatic systolic heart failure patients out of which nearly 40% have a QRS duration of less than 120 msec. Our study aims at assessing acute hemo-dynamic impact of Biventricular (BiV) and compare it with isolated left ventricular (LV) pacing in patients of systolic heart failure and QRS duration < or = 120 msec. ⋯ BiV pacing, and not LV pacing, benefits patients of systolic heart failure (EF < or = 35%) and narrow QRS (< or = 120 msec) on surface ECG.