Conduction system pacing: Current status and prospects

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Traditional right ventricular pacing can cause electrical and mechanical dyssynchrony, leading to adverse effects like left ventricular dysfunction and heart failure.
• Conduction system pacing (CSP) aims to activate the native conduction system, restoring physiological ventricular activation and synchrony.
• His bundle pacing (HBP) and left bundle branch area pacing (LBBAP) are key CSP modalities.

Purpose of the Study:

• To review the clinical implications and limitations of conduction system pacing (CSP).
• To provide a literature review on His bundle pacing (HBP) and left bundle branch area pacing (LBBAP).
• To evaluate CSP as a physiological alternative to conventional pacing.

Main Methods:

• Literature review of studies on conduction system pacing.
• Analysis of clinical outcomes, capture thresholds, and efficacy of HBP and LBBAP.
• Comparison of CSP with traditional right ventricular pacing and biventricular pacing.

Main Results:

• CSP, including HBP and LBBAP, offers a more physiological approach to ventricular pacing.
• HBP has shown efficacy in improving left ventricular systolic dysfunction but faces challenges with high capture thresholds.
• LBBAP presents an alternative with potentially lower and more stable capture thresholds compared to HBP.

Conclusions:

• CSP modalities like HBP and LBBAP represent significant advancements in pacing therapy.
• These techniques may offer superior cardiac synchronization compared to biventricular pacing, especially in heart failure management.
• Further research is needed to fully elucidate the long-term benefits and address limitations of CSP.