Key result
Surgical removal of coronary chimney stents post-ViV-TAVI triggers catastrophic RCA dissection in a single case.
This case highlights the risk of catastrophic right coronary artery dissection during surgical removal of coronary chimney stents after valve-in-valve TAVI.
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ViV TAVI may be considered in high-risk patients with failed Mitroflow bioprostheses; extends literature on valve-in-valve procedures for this valve type.
A 64-year-old woman with surgical aortic valve replacement using a Mitroflow bioprosthesis (LivaNova) 9 years prior presented with prosthetic valve dysfunction. Because of elevated surgical risk, she underwent valve-in-valve transcatheter aortic valve implantation.
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Martín et al. (2026) studied this question. Surgical removal of coronary chimney stents after valve-in-valve transcatheter aortic valve implantation led to catastrophic right coronary artery dissection in a 64-year-old woman.
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