Mitral Valve Repair with Isolated Ring Annuloplasty: Mid-term Results of 43 Patients

OpenAlex İngilizce

Aim: Repair techniques are recommended for mitral regurgitation in appropriate cases. Although there are many different mitral valve repair techniques described, data on the outcomes of patients undergoing isolated ring annuloplasty are limited. In this study, we analyzed the operative and postoperative results of isolated ring annuloplasty. Material and Method: Forty-three patients who underwent isolated ring annuloplasty for mitral regurgitation were included in the study and the results were analyzed retrospectively. Patients were followed up for 18.4±13.4 months. Results: The mean age of the patients was 53.9±10.8 years (25 (58.1%) males). According to Carpentier functional classification, 21 (48.8%) patients had type I and 22 (51.2%) patients had type IIIb dysfunction. While 7 (16.3%) patients were planned to undergo intervention for mitral valve only, the majority of patients (36 patients, 83.7%) underwent combined procedures. When the preoperative and postoperative values of our patient group were compared, a statistically significant improvement was observed in functional capacity according to NYHA (p<0.001). In addition, the mitral regurgitation grade of the patients decreased from a mean of 2.37±0.49 to 0.73±0.52 (p<0.001). Improvements in left ventricular end-diastolic diameter, left ventricular end-systolic diameter, pulmonary artery pressure and left atrial size measured at follow-up were statistically significant compared to preoperative data (p<0.001, p=0.001, p=0.001, p=0.007 and p=0.005, respectively). Conclusions: Isolated ring annuloplasty technique can be safely performed in patients with normal leaflets and subvalvular structures and only annular dilatation. In addition, if the mitral valve anatomy is appropriate, only ring annuloplasty can be performed to correct valve pathology to avoid prolonging cross-clamp and cardiopulmonary bypass time in operations where other long procedures will be performed in addition to mitral valve intervention. Keywords: Annuloplasty, mitral valve, repair, ring