Conduction system pacing in heart failure: Time for a paradigm shift?

Area of Science:

• Cardiology
• Electrophysiology
• Medical Devices

Background:

• Heart failure (HF) presents significant morbidity and mortality, often linked to electrical conduction abnormalities.
• Conventional pacing techniques may yield suboptimal outcomes in HF patients with these abnormalities.
• Conduction system pacing (CSP) offers a novel approach targeting the heart's natural conduction system.

Purpose of the Study:

• To review the current status and future directions of conduction system pacing (CSP) in heart failure (HF) management.
• To highlight the potential benefits and existing challenges of CSP for HF patients.
• To emphasize the need for further research, particularly randomized controlled trials (RCTs).

Main Methods:

• Review of current literature and observational studies on CSP in HF.
• Analysis of recent guideline recommendations regarding CSP.
• Discussion of technical challenges and future technological integration in CSP.

Main Results:

• CSP, including His bundle pacing and left bundle branch area pacing, is recommended for specific HF populations based on observational data.
• Existing data are primarily from observational studies, limiting definitive conclusions on long-term outcomes.
• Technical challenges in lead implantation and mechanical stress require further investigation.

Conclusions:

• CSP holds potential for improving HF management by addressing electrical conduction abnormalities.
• Routine clinical implementation requires clarification of practical considerations and resolution of technical challenges.
• Large-scale RCTs are crucial to establish efficacy, identify optimal candidates, and guide future CSP practices in HF.