Key result
Balloon fracturing during valve-in-valve TAVR allows proper valve sizing to reduce PPM risk.
Why the study?
TAVR inside a small previous bioprosthetic valve may cause prosthesis-patient mismatch, but valve fracturing with a high-pressure balloon can facilitate optimal valve implantation.
Case Report (n=1)
Balloon fracturing of small bioprosthetic heart valves during valve-in-valve TAVR is an effective technique to prevent prosthesis-patient mismatch.
Transcatheter aortic valve replacement (TAVR) to treat degeneration of bioprosthetic heart valves (BHVs), called as valve-in-valve (ViV), is becoming a key feature since the number of BHVs requiring intervention is increasing and many patients are at high risk for a redo cardiac surgery. However, a TAVR inside a small previous cardiac valve may lead to prosthesis-patient mismatch (PPM) and not be as effective as we hoped for. An effective option to decrease the chance of PPM is to fracture the previous heart valve implanted using a high-pressure balloon. By performing a valve fracture, the inner valve ring of small BHVs can be opened up by a single fracture line, allowing subsequent implantation of a properly sized transcatheter heart valve, without increasing substantially the procedure risk. In this article, we provide a step-by-step procedure on how to safely and properly fracture a BHV and report a case of a TAVR in a degenerated rapid deployment valve.
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Saadi et al. (2022) conducted a case report in Degeneration of bioprosthetic heart valves requiring valve-in-valve TAVR (n=1). Balloon fracturing of bioprosthetic heart valve was evaluated. Balloon fracturing of small bioprosthetic heart valves during valve-in-valve TAVR allows implantation of a properly sized transcatheter valve to decrease the chance of prosthesis-patient mismatch.
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