title: Displacement of calcium nodules of the native valve as a possible cause of left main occlusion following transcatheter aortic valve implantation.
abstract: We describe the case of an 89-year-old woman who developed severe left main coronary artery stenosis shortly after transcatheter aortic valve implantation (TAVI) with the Medtronic CoreValve Revalving System. Urgent coronary angiography revealed the protrusion of a large calcium nodule of the native valve as the cause of left main narrowing, which was treated with bare-metal stent implantation. Angiographic and intravascular ultrasound findings at follow-up are reported. This case describes one of the mechanisms of a dreadful complication of TAVI and its difficult management.
authors.affiliation: Institute of Cardiology, University of Bologna, Policlinico S. Orsola-Malpighi (Pad 21), Via Massarenti, 9, 40138 Bologna, Italy. francescosaia@hotmail.com
authors.forename: Francesco
authors.initials: F
authors.lastname: Saia
authors.forename: Cinzia
authors.initials: C
authors.lastname: Marrozzini
authors.forename: Antonio
authors.initials: A
authors.lastname: Marzocchi
mesh_terms: D000369:Aged, 80 and over; D015906:Angioplasty, Balloon, Coronary; D001024:Aortic Valve Stenosis / Q000628:therapy*; D002114:Calcinosis / Q000150:complications*; D023921:Coronary Stenosis / Q000000981:diagnostic imaging / Q000209:etiology* / Q000628:therapy; D005260:Female; D006350:Heart Valve Prosthesis; D019918:Heart Valve Prosthesis Implantation / Q000009:adverse effects*; D006801:Humans; D015607:Stents; D016896:Treatment Outcome; D018084:Ultrasonography, Interventional