Rotational Atherectomy of Aorto-Ostial Calcification and Retained Native Leaflet to Facilitate Valve-in-Valve TAVI

主动脉瓣口钙化旋切术及保留原生瓣叶以利于瓣中瓣经导管主动脉瓣置换术(TAVI)。

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Abstract

BACKGROUND: A 72-year-old patient presented with breathlessness and presyncope due to severe stenosis within a 25-mm Perimount bioprosthetic aortic valve. The patient had hepatic cirrhosis and was not a candidate for redo surgical valve replacement. A computed tomography transcatheter aortic valve implantation (TAVI) demonstrated severe aorto-ostial left main calcific disease, with dense calcification from the annulus to the inferior border of the left main ostium, which was thought to represent a retained native leaflet, with high risk of coronary obstruction. CASE SUMMARY: Using cerebral protection, rotational atherectomy was undertaken through the aorto-ostial calcification and retained leaflet, followed by left main stem percutaneous coronary intervention. A staged TAVI with a 23-mm Sapien S3 and a chimney stent for coronary protection was successful. DISCUSSION: Although concomitant left main stem rotational atherectomy and TAVI have been described, no reports of rotablation to facilitate leaflet modification have been identified. TAKE-HOME MESSAGE: Rotational atherectomy helped to modify the retained aortic valve leaflet and safely facilitate TAVI in a nonsurgical candidate.

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