Aortic Annulus S-Curve Implications for Transcatheter Aortic Valve Replacement and Related Procedures, Part 1

Most transcatheter aortic valve replacement-related procedures (eg, transcatheter aortic valve replacement implantation depth, commissural alignment, coronary access, bioprosthetic or native aortic scallop intentional laceration to prevent iatrogenic coronary artery obstruction, paravalvular leak closure) require an optimal fluoroscopic viewing angle located somewhere along the aortic annulus S-curve. Chamber views, coronary cusp and coronary anatomy, can be understood along the aortic annulus S-curve. A better understanding of the optimal fluoroscopic viewing angles along the S-curve may translate into increased operator confidence and improved safety and efficacy while reducing procedural time, radiation dose, contrast volume, and complication rates. (J Am Coll Cardiol Intv 2022;15:2353-2373) (c) 2022 by the American College of Cardiology Foundation.

Automated summary

This study discusses the importance of optimal fluoroscopic viewing angles along the aortic annulus S-curve in transcatheter aortic valve replacement-related procedures. It suggests that a better understanding of these angles can increase operator confidence, improve safety and efficacy, and reduce procedural time, radiation dose, contrast volume, and complication rates.