FATAL CARDIOVASCULAR COLLAPSE DURING TRANS-AORTIC TRANSCATHETER AORTIC VALVE REPLACEMENT FOLLOWING INTRA-PROCEDURAL RETROGRADE TRANSCATHETER HEART VALVE MIGRATION INTO THE LEFT VENTRICULAR OUTFLOW TRACT

Abstract

Transcatheter heart valve retrograde migration after transcatheter aortic valve implantation is unusual. It can occur during the implantation of the aortic transcatheter heart valve, i.e., intra-procedural, or in the first few days following the intervention. Transcatheter valve embolisation and migration soon after deployment typically results from the implantation of a prothesis that was undersized for the annulus, an unreasonably low implantation, or the expulsion of the device following deployment by an excessive ventricular contraction. The presented case highlights the importance of the timing of the complication that has taken place, in this case, intra-procedural, which has become relevant to the research.