Key result
Conduction system pacing resulted in similar relative QRS shortening compared to biventricular pacing (0.23 vs 0.25) but produced a more physiological apical shift in equivalent dipole trajectory.
Why the study?
Conduction system pacing has been introduced as an alternative to biventricular pacing, and it was hypothesized to produce more complete electrical resynchronization.
Does conduction system pacing improve electrical resynchronization compared to biventricular pacing in heart failure patients with LBBB?
RCT (n=17)
Randomized
No
Does conduction system pacing improve electrical resynchronization compared to biventricular pacing in heart failure patients with LBBB?
Conduction system pacing may restore more physiological ventricular depolarization compared to traditional biventricular pacing in heart failure patients with LBBB.
Answers are grounded in this paper and cite their sources.
Conduction system pacing yields more physiological activation than biventricular pacing despite similar QRS shortening; extends resynchronization metrics in LBBB heart failure RCTs.
Cardiac resynchronization therapy with biventricular pacing (BiV) is the cornerstone treatment for heart failure patients with ventricular dyssynchrony. Recently, the conduction system pacing (CSP) has being introduced as a possible alternative. We hypothesized that CSP could produce a more complete electrical resynchronization compared to conventional BIV pacing.
No takes yet. Share an insight, caveat, or question.
Starc et al. (2022) conducted an RCT in Heart failure with left bundle branch block (n=17). Conduction system pacing (CSP) vs. Biventricular pacing (BiV) was evaluated on Relative QRS shortening (p=0.61). Conduction system pacing resulted in similar relative QRS shortening compared to biventricular pacing (0.23 vs 0.25) but produced a more physiological apical shift in equivalent dipole trajectory.
Synapse has enriched 10 related papers. Consider them for comparative context: