[Introduction]
HBP is a more physiologic modality of pacing, a feasible and effective
form for ventricular activation, however, the recognition of
imperfection of HBP has led to seek for more advisable options of
pacing. Permanent LBBP might be an alternative to HBP to potentially
maintain left ventricular electrical synchrony with better sensing, a
lower and more stable capture threshold [1,2,3] , especially
in patients with infra-nodal atrioventricular block and left bundle
branch block.
Atrioventricular junction region includes atrioventricular node and
nearby proximal His bundle, AVNA combined with HBP are feasible, safe,
and effective in patients with refractory AF [4] , however,
successful case of atrioventricular junction ablation (AVJA) combined
with LBBP in refractory AF with comorbidity of HCM has not been
documented.
Our report exactly focuses on the feasibility of electrophysiological
performance, safety and clinical effectiveness of AVJA combined with
LBBP in patient with refractory AF and HCM.