Key result
LBBAP treats paroxysmal AV block and LBBB in a single case, reducing QRS by 50 ms.
Why the study?
LBBAP engages the conduction system and has been proposed as a viable alternative to CRT, but clinical experience in patients with complete atrioventricular block and CLBBB needs demonstration.
Does left bundle branch area pacing (LBBAP) provide effective pacing in a patient with complete atrioventricular block and complete left bundle branch block?
Case Report (n=1)
No
Does left bundle branch area pacing (LBBAP) provide effective pacing in a patient with complete atrioventricular block and complete left bundle branch block?
LBBAP can be effectively used in patients with complete AV block and complete LBBB as an alternative to traditional pacing or CRT.
Supports LBBAP feasibility in complete AV block with LBBB; hypothesis-generating and should not yet change practice.
Left bundle branch area pacing (LBBAP) can effectively enhance cardiac contraction by engaging the conduction system. LBBAP, compared with right ventricular apex pacing, can reduce QRS duration and enhance left ventricular function. Consequently, LBBAP has been proposed as a viable alternative to cardiac resynchronization therapy (CRT).Here, we present a case illustrating the efficacy of the LBBAP in a patient with a complete atrioventricular block and complete left bundle branch block (CLBBB).
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Tsuyuki et al. (2024) conducted a case report in Paroxysmal complete atrioventricular block with complete left bundle branch block (n=1). Left bundle branch area pacing (LBBAP) was evaluated on Reduction in QRS duration and improvement in dyssynchrony. Left bundle branch area pacing successfully treated a patient with paroxysmal complete atrioventricular block and complete left bundle branch block, reducing QRS duration by 50 milliseconds.
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