Valvular & structural heart diseaseCohort study

Long-Term Outcomes of Contemporary Surgical Repair for Degenerative Mitral Regurgitation

J Am Coll CardiolPublished

  • Retrospective cohort study
  • single-centre
  • high-volume tertiary care center
  • independently adjudicated outcomes

Authors' conclusion

This contemporary series provides further data on the low in-hospital mortality and excellent long-term outcomes of surgical mitral repair when performed in a high-volume center.

Study context

Population
Patients undergoing surgical mitral repair for degenerative mitral regurgitation at a tertiary care center, 2008–2017
Participants
3,317 patients
Outcome
Long-term survival, reinterventions and HF rehospitalizations
Follow-up
10 years

Main finding

As reported in the abstract

10-year survival

89.65% (95% CI 88.75%-90.55%)

Freedom from reoperation at 10 years

96.63% (95% CI 95.63%-97.63%)

10-year freedom from HF rehospitalization

92.24% (95% CI 90.62%-93.86%)

Observational data: associations, not effects.

Further findings

In-hospital mortality

All cases (16 of 3,317)
0.48%
Isolated mitral valve repair (5 of 2,399)
0.21%

Independent risk factors

Survival: preoperative symptoms and anterior leaflet disease
Reoperation: anterior leaflet disease, second run of cardiopulmonary bypass, more than mild mitral regurgitation at discharge
HF rehospitalization: age, prior HF hospitalization, preoperative symptoms, anterior leaflet disease

Original publication

Long-Term Outcomes of Contemporary Surgical Repair for Degenerative Mitral Regurgitation. J Am Coll Cardiol. Published 5 February 2025. doi:10.1016/j.jacc.2024.10.108

Summarised from the published abstract; every number is checked against it