Key result
Advancing left ventricular stimulation or pacing the left ventricle only improved hemodynamic parameters and heart failure symptoms in patients with pronounced stimulus to QRS latency.
Why the study?
Does advancing LV stimulation or pacing the LV only improve hemodynamics and symptoms in patients with latency during LV pacing?
Case Report (n=3)
Does advancing LV stimulation or pacing the LV only improve hemodynamics and symptoms in patients with latency during LV pacing?
Adjusting pacing timing or pacing the LV only can overcome ineffectual biventricular pacing caused by latency during LV pacing from lateral cardiac veins, leading to immediate hemodynamic and symptomatic improvement.
No takes yet. Share an insight, caveat, or question.
LV pacing adjustments may benefit select patients with stimulus-QRS latency; hypothesis-generating and requires prospective trials before practice change.
Herweg et al. (2006) conducted a case report in Cardiomyopathy with pronounced stimulus to QRS latency during left ventricular pacing (n=3). Advancing left ventricular stimulation or pacing the left ventricle only vs. Simultaneous biventricular pacing (baseline) was evaluated on Hemodynamic parameters and heart failure symptoms. Advancing left ventricular stimulation or pacing the left ventricle only improved hemodynamic parameters and heart failure symptoms in patients with pronounced stimulus to QRS latency.
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