Conduction system pacing: promoting the physiology to prevent heart failure

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Traditional right ventricular pacing can lead to dyssynchronous ventricular activation.
• Conduction system pacing aims to restore more physiological ventricular activation by directly stimulating the heart's natural conduction system.
• His bundle pacing (HBP) and left bundle area pacing (LBAP) are two primary methods of conduction system pacing.

Purpose of the Study:

• To review the techniques, advantages, and disadvantages of His bundle pacing (HBP) and left bundle area pacing (LBAP).
• To compare conduction system pacing with traditional right ventricular pacing and cardiac resynchronization therapy (CRT).

Main Methods:

• This is a review article, synthesizing existing literature on conduction system pacing.
• The review discusses the implantation techniques, physiological benefits, and clinical outcomes of HBP and LBAP.

Main Results:

• His bundle pacing (HBP) can achieve narrow QRS complexes but presents implantation challenges and risks of lead issues.
• Left bundle area pacing (LBAP) offers optimal physiological left ventricular activation, with simpler implantation and better lead stability compared to HBP.
• Both HBP and LBAP are more physiological than conventional right ventricular pacing and are being explored as alternatives to CRT.

Conclusions:

• Conduction system pacing, particularly LBAP, offers significant advantages over traditional RV pacing.
• LBAP is a viable and potentially superior alternative for patients requiring pacing and possibly for CRT.
• Further investigation into HBP and LBAP as alternatives to conventional pacing and CRT is warranted.