“Bow-Tie” mitral valve repair: An adjuvant technique for ischemic mitral regurgitation

摘要: Abstract Background . Current techniques of mitral valve repair rely on decreasing area to increase leaflet apposition, but fail address subvalvular dysfunction. A novel has been introduced with partial left ventriculectomy, which apposes the anterior a corresponding point posterior creating double-orifice valve, reported adequate control regurgitation. Methods We started use "bow-tie" as an adjunct ring annuloplasty in cases regurgitation was not adequately controlled by (n = 6), or when placement impractical 4). Mean follow-up 336 days (range, 82 551 days) no postoperative deaths. Results Mitral decreased from 3.6 ± 0.5 0.8 0.4 ( p 0.0156) before hospital discharge. area, measured pressure half-time, mean 2.5 0.3 2.1 cm 2 , transvalvular gradient 4.5 2.0 mm Hg. In patients whose repaired using bow-tie alone, reduced 4+, trace 1+. Postoperatively, increased 1.9 during exercise, further supporting concept that this technique preserves annular function. Conclusions These observations suggest may offer advantages over conventional and should be considered adjunct, especially impaired ventricular