Key result
Mitral surgery for secondary MR with LVEF ≤30% yields ~63% 5-year survival, worsened by frailty.
Why the study?
Surgical repair of secondary mitral regurgitation remains controversial in patients with poor cardiac function, necessitating evaluation of operative and long-term outcomes.
Does open mitral valve surgery improve outcomes in patients with secondary mitral regurgitation and LVEF ≤30%?
Design
Retrospective cohort study
Follow-up
Up to 5 years
Authors
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Supports individualized surgical decisions incorporating frailty; leaves open randomized confirmation of benefit versus medical therapy alone.
Cohort (n=69)
Does open mitral valve surgery improve outcomes in patients with secondary mitral regurgitation and LVEF ≤30%?
Open mitral valve surgery in patients with secondary mitral regurgitation and LVEF ≤30% is associated with acceptable long-term survival, though high clinical frailty predicts a worse prognosis.
Kitamura et al. (2021) conducted a cohort in Secondary mitral regurgitation with poor left ventricular function (n=69). Mitral valve surgery was evaluated on 5-year survival rate. Mitral valve surgery for secondary mitral regurgitation with LVEF ≤30% yielded no operative deaths and a 5-year survival rate of 63.4%, with worse prognosis in patients with frailty scores ≥4.
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