Chordal replacement with polytetrafluoroethylene sutures for mitral valve repair: A 25-year experience

摘要: Objective The study objective was to examine the late results of mitral valve repair with chordal replacement polytetrafluoroethylene sutures. Methods From 1986 2004, 606 consecutive patients degenerative regurgitation had Patients' mean age 57 years, and 73.6% were men. Isolated prolapse anterior leaflet present in 17.6% patients, isolated posterior 29.5% bileaflet 52.9% patients. Prolapse corrected by creating 2 38 neochords sutures (mean, 13 ± 9 per patient). follow-up 10.1 96% multiple echocardiographic studies over years. Results There 5 early 106 deaths. Age, diabetes, hypertension, chronic obstructive lung disease, New York Heart Association functional classes III IV, ejection fraction less than 40% independent predictors mortality. At 18 freedom from reoperation on 90.2% 2.4%, recurrent severe 91.0% 2.7%, moderate or 67.5% 4.2%. Cox regression analysis revealed that predictive reoperation, older age, left ventricular regurgitation. Conclusions Chordal expands indication segments. Valve function remains stable most during first decades follow-up.