Transcatheter Coronary Artery Bypass to Circumvent Iatrogenic Obstruction: The VECTOR (Ventriculo-Coronary Transcatheter Outward Navigation and Re-Entry) Procedure in Swine.

ABSTRACT:

Background

Coronary artery obstruction is a rare but devastating complication of transcatheter aortic valve replacement. Current techniques (transcatheter leaflet modification or snorkel stenting) cannot prevent obstruction in all cases.

Methods

We created a transcatheter coronary artery bypass procedure, VECTOR (Ventriculo-Coronary Transcatheter Outward Navigation and Re-Entry), to bypass the proximal coronary artery with a covered stent graft. We tested the feasibility of creating a neo-ostium, 10 to 15 mm cephalad to the native, and bypassing the proximal coronary artery in swine. We established a proximal anastomosis using transcatheter electrosurgery to exit the aorta to the pericardium. The distal anastomosis was created using a guidewire to exit the proximal coronary

SUBMITTER: Bruce CG 

PROVIDER: S-EPMC12327806 | biostudies-literature | 2025 Jul

REPOSITORIES: biostudies-literature