Key result
Conduction system pacing provides a physiological alternative to conventional RVP for bradycardia.
Why the study?
Conventional right ventricular pacing causes electromechanical dyssynchrony, leading to a shift toward conduction system pacing with His bundle pacing or left bundle branch area pacing.
Does conduction system pacing prevent electromechanical dyssynchrony compared to conventional right ventricular pacing in patients with bradyarrhythmia?
Does conduction system pacing prevent electromechanical dyssynchrony compared to conventional right ventricular pacing in patients with bradyarrhythmia?
Conduction system pacing offers a physiological alternative to traditional right ventricular pacing, potentially avoiding pacing-induced electromechanical dyssynchrony that can lead to atrial fibrillation and heart failure.
Answers are grounded in this paper and cite their sources.
May support physiological pacing in bradycardia to limit dyssynchrony; leaves open confirmation in randomized trials.
Cardiac pacing has been an established therapy for bradyarrhythmia due to sinus or atrioventricular nodal disease since the 1950s. However, contemporary studies have shown that conventional right ventricular pacing (RVP) causes electromechanical dyssynchrony, which can lead to atrial fibrillation, heart failure and even death. Recently, the push for a more physiological cardiac pacing has seen a revival in the utilisation and development of conduction system pacing (CSP). There has been a shift towards adopting His bundle pacing (HBP) or left bundle branch area pacing (LBBaP) in bradycardia patients worldwide and in Singapore. This review serves to outline the electrophysiological concepts behind CSP and illustrate the different paced electrocardiogram characteristics of HBP, LBBaP and RVP to aid understanding of this revolutionary pacing approach among medical practitioners in Singapore.
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Tan et al. (2024) conducted a review in Bradycardia. Conduction system pacing (His bundle pacing or left bundle branch area pacing) vs. Right ventricular pacing was evaluated. Conduction system pacing, including His bundle and left bundle branch area pacing, provides a physiological alternative to conventional right ventricular pacing for patients with bradycardia.
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