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- W4378349303 abstract "Background This study assessed risk factors for mitral regurgitation (MR) recurrence or functional mitral stenosis during long-term follow-up in patients undergoing mitral valve repair for isolated posterior mitral leaflet prolapse. Methods and Results We assessed a consecutive series of 511 patients who underwent primary mitral valve repair for isolated posterior leaflet prolapse between 2001 and 2021. Annuloplasty using a partial band was selected in 86.3%. The leaflet resection technique was used in 83.0%, whereas the chordal replacement without resection was used in 14.5%. Risk factors were analyzed for MR recurrence ≥grade 2 or functional mitral stenosis with mean transmitral pressure gradient ≥5 mm Hg using a multivariable Fine-Gray regression model. The 1-, 5-, and 10-year cumulative incidence of MR ≥grade 2 was 7.8%, 22.7%, and 30.1%, respectively, whereas that of mean transmitral pressure gradient ≥5 mm Hg was 8.1%, 20.6%, and 29.3%, respectively. Risk factors for MR ≥grade 2 included chordal replacement without resection (hazard ratio [HR], 2.50, P<0.001) and larger prosthesis size (HR, 1.13, P=0.023), whereas factors for functional mitral stenosis were use of a full ring (partial band versus full ring, HR, 0.53, P=0.013), smaller prosthesis size (HR, 0.74, P<0.001), and larger body surface area (HR, 3.03, P=0.045). Both MR ≥grade 2 and mean transmitral pressure gradient ≥5 mm Hg at 1 year post surgery were significantly associated with the long-term incidence of reoperation. Conclusions Leaflet resection with a large partial band may be an optimal strategy for isolated posterior mitral valve prolapse." @default.
- W4378349303 created "2023-05-27" @default.
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- W4378349303 date "2023-06-06" @default.
- W4378349303 modified "2023-10-14" @default.
- W4378349303 title "What Is the Optimal Mitral Valve Repair for Isolated Posterior Leaflet Prolapse to Achieve Long‐Term Durability?" @default.
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- W4378349303 doi "https://doi.org/10.1161/jaha.122.028607" @default.
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