Left Bundle Branch Area Pacing Versus Right Ventricular Pacing in Atrioventricular Block With Preserved Ejection Fraction
Condition(s) studied
Investigational drug(s) / intervention(s)
Left Bundle Branch Area Pacing: Left bundle branch area pacing performed using a stylet-driven extendable screw-in pacing lead to achieve physiological ventricular activation in patients with atrioventricular block.
Right venticular pacing: Conventional right ventricular pacing performed with a standard transvenous pacing lead for treatment of atrioventricular block.
Study summary
Conventional right ventricular pacing (RVP) has been associated with ventricular dyssynchrony and an increased risk of pacing-induced cardiomyopathy, which may lead to worse clinical outcomes. These adverse effects are more pronounced in patients with pre-existing left ventricular dysfunction. To overcome these limitations, left bundle branch area pacing (LBBAP), which directly engages the cardiac conduction system to preserve physiological ventricular activation, has been increasingly adopted in clinical practice.
However, in patients with atrioventricular block and preserved left ventricular ejection fraction (LVEF ≥50%), evidence demonstrating the long-term clinical superiority of LBBAP over conventional RVP remains limited. As a result, both pacing strategies continue to be used in current practice. This multicenter randomized trial aims to compare the efficacy, safety, and lead stability of LBBAP using a stylet-driven extendable screw-in lead versus conventional RVP in patients with atrioventricular block and preserved ejection fraction.
Eligibility
Primary outcome measure(s)
- LV ejection fraction — at 1 years after PPM implantation
% at echocardiography
Trial sites (4)
| Facility | City | Region | Status |
|---|---|---|---|
| Wonju Severance Christian Hospital | Wŏnju | Gangwon-do | |
| Samsung Medical Center | Seoul | Seoul | |
| Samsung Changwon Hospital | Changwon | South Korea | |
| Veterans Health Service Medical Center | Seoul | South Korea |
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Other trials for the same condition
This page summarises publicly available registry data for informational purposes — not medical advice. Eligibility is determined by each study team; patients should discuss participation with their clinician.
View NCT07464041 on ClinicalTrials.gov ↗ ← All trials in South Korea