Journal
FRONTIERS IN PHYSIOLOGY
Volume 14, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fphys.2023.1124195
Keywords
his bundle pacing; left bundle branch area pacing; heart failure; left bundle branch block; biventricular pacing; conduction system pacing
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Biventricular pacing (BVP) is the established treatment for cardiac resynchronization therapy (CRT) in heart failure patients with left bundle branch block (LBBB). However, BVP has limitations due to non-responders and coronary sinus anatomy. Conduction system pacing (CSP) and left bundle branch area pacing (LBBAP) are emerging alternatives to BVP, showing promising results in terms of better ventricular synchronization. However, more research and long-term clinical data are needed to determine the primary role of CSP in CRT candidates.
Biventricular pacing (BVP) is the established treatment to perform cardiac resynchronization therapy (CRT) in patients with heart failure (HF) and left bundle branch block (LBBB). However, BVP is an unnatural pacing modality still conditioned by the high percentage of non-responders and coronary sinus anatomy. Conduction system pacing (CSP)-His bundle pacing (HBP) and Left bundle branch area pacing (LBBAP)- upcomes as the physiological alternative to BVP in the quest for the optimal CRT. CSP showed promising results in terms of better electro-mechanical ventricular synchronization compared to BVP. However, only a few randomized control trials are currently available, and technical challenges, along with the lack of information on long-term clinical outcomes, limit the establishment of a primary role for CSP over conventional BVP in CRT candidates. This review provides a comprehensive literature revision of potential applications of CSP for CRT in diverse clinical scenarios, underlining the current controversies and prospects of this technique.
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