Acute left main stem coronary occlusion following transcatheter aortic valve replacement in a patient without recognized coronary obstruction risk factors: a case report.

ABSTRACT:

Background

Acute coronary obstruction following transcatheter aortic valve replacement (TAVR) is an uncommon but life-threatening event.

Case summary

A 78-year-old man developed acute left main obstruction following transfemoral TAVR with a balloon-expandable valve. Cardiac arrest ensued, requiring emergent peripheral cardiopulmonary bypass. Percutaneous coronary intervention (PCI) to the left main coronary artery was performed with one drug-eluting stent. Intravascular ultrasound (IVUS) demonstrated focal underexpansion of the stent in its proximal segment which was not responsive to high-pressure non-compliant balloon dilatation, suggesting stent compression from either valve strut or calcific native leaflet. Therefore, to increase radial strength of the scaffolding at the

SUBMITTER: Spina R 

PROVIDER: S-EPMC6426119 | biostudies-literature | 2018 Dec

REPOSITORIES: biostudies-literature