Early and Mid-Term Results of Mitral Valve Repair in Patients with Degenerative Mitral Regurgitation

Abstract

Introduction: In this study, we present the early and mid-term results of patients who underwent valve repair due to degenerative mitral valve regurgitation in the first five years of our mitral valve repair program.

Patients and Methods: In this retrospective study, all patients who were operated for degenerative mitral regurgitation by a single surgical team between 2013 and 2017 were investigated. We determined early and mid-term cumulative survival rates, repair failure and freedom from reoperation. In addition, as a specific subgroup, the results of patients under 18 years of age after mitral valve repair were investigated.

Results: Mitral repair was performed in 121 of 153 degenerative mitral regurgitation patients during the study period. The overall repair rate was 79%. Mitral valve repair rate increased significantly over years. The median follow-up time was 63 (range 10-92) months. Early mortality was 2.5% (n= 3). During the follow-up period, moderate-to-severe mitral regurgitation was observed in 14 (11.8%) patients, mitral valve reoperation was required in 7 (5.9%) patients. Valve repair was performed in 4 of 7 patients under the age of 18. There was no pediatric case requiring reoperation during the follow-up period (median 46 months).

Conclusion: Mid-term results of mitral valve repair in degenerative mitral valve patients are satisfactory. The success rate of repair increases in line with surgical experience.

This study was approved by the Institutional Research Ethical Committee of Kartal Koşuyolu High Specialization Training and Research Hospital (number: 2019.4/7-184).

Informed consent was obtained.

Externally peer-reviewed.

Concept/Design - HE, ES; Analysis/Interpretation - HE, ES; Data Collection - HE, ES; Writing - HE, ES; Critical Revision - HE, ES; Statistical Analysis - HE, ES; Overall Responsibility - HE, ES; Final Approval - All of authors.

The authors have no conflicts of interest to declare.

The authors declared that this study has received no financial support.

We would like to thank Prof. Dr. Cengiz Köksal for his mentorship and important contributions to the preparation of this study. Mr. Köksal worked as the Chief of the surgical team during the study period and allowed the presentation of the patients.