ArticleReviews in cardiovascular medicine2023
Transcatheter Mitral Valve-in-Valve Implantation Applying a Long Pre-Curved Sheath for Patients with Degenerated Bioprosthetic Mitral Valve.
Article in Reviews in cardiovascular medicine, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
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9 authors.
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Abstract
Backgrounds: Percutaneous transseptal transcatheter mitral valve-in-valve implantation (TMViV) has become an alternative minimally invasive treatment choice for patients with degenerated mitral bioprosthesis and high surgical risk. However, transseptal approach is more technically challenging than transapical approach in TMViV procedures. Objective: The objective of this study was to introduce the experience of applying long pre-curved sheaths in transseptal TMViV procedures and to evaluate the effect of long pre-curved sheath techniques in TMViV procedures. Methods: Between January 2020 and December 2021, 27 patients with degenerated bioprosthetic mitral valve underwent TMViV procedures using a balloon-expandable valve via the transseptal approach. The regular 14/16F expandable sheath were used for low-profile delivery in first 10 cases, and 22F long pre-curved sheath were used in the next 17 cases during procedures. We retrospectively reviewed the catheter techniques, perioperative characteristics, and prognosis. The median follow-up time was 12 (1-21) months. To further scrutinize our data, we divided the group into the early 10 patients using 14/16F expandable sheath and the subsequent 17 patients with long pre-curved sheath in order to assess the impact of different sheaths and procedural details on outcomes. Results: Procedural success was obtained in all patients with no in-hospital mortality. Seventeen patients received 26 mm prostheses; the remaining ten patients received 29 mm prostheses. Post balloon dilatation was performed in one case. Total procedure time was (96.1 Conclusions: Transseptal TMViV using long pre-curved sheath could simplify transseptal approach with reliable outcomes for patients of degenerated mitral bioprosthesis.
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