Anatomical features associated with transcatheter aortic valve replacement. (A) The anatomy and frequent types of aortic stenosis. (B) Positional relationship between the transcatheter aortic valve landing zone and the atrioventricular conduction system. Anatomical schematic of the membranous septal region in the heart from Samuel J et al. . LC, left coronary cusp; RC, right coronary cusp; NC, noncoronary cusp; SAN, sinoatrial node; AVN, atrioventricular node; AVB, atrioventricular bundle; LBB, left bundle branch; RBB, right bundle branch; THV, transcatheter aortic valve.
Front Cardiovasc Med. 2024 Apr 8;11:1370244. doi: 10.3389/fcvm.2024.1370244