Long-Term Outcome of Active Surveillance in Severe But Asymptomatic Primary Mitral Regurgitation

JACC. Cardiovascular Imaging
Robert ZilberszacRaphael Rosenhek

Abstract

This study sought to assess the long-term outcome of active surveillance in these patients. The optimal timing of mitral valve surgery in asymptomatic primary mitral regurgitation (MR) remains controversial. Between 1997 and 2015, 280 consecutive patients with severe asymptomatic primary MR were enrolled in our heart valve clinic follow-up program. They were prospectively followed up every 6 months clinical and echocardiographical examinations until surgical criteria were reached. Event-free survival and overall survival as compared with the age- and gender-matched general population were assessed. During a median potential follow-up of 93.4 (quartiles 55.3 to 152.9) months, 161 patients developed an indication for surgery and 13 patients died. Event-free survival rates were 78.0% (95% confidence interval [CI]: 73.2% to 83.2%) at 2 years, 52.2% (95% CI: 46.3% to 59.0%) at 6 years, 35.5% (95% CI: 29.3% to 43.1%) at 10 years, and 18.7% (95% CI: 12.3% to 28.5%) at 15 years. Overall survival rate was 99.6% (95% CI: 98.9% to 100%) at 2 years, 94.6% (95% CI: 91.7% to 97.6%) at 6 years, 85.6% (95% CI: 80.3% to 91.2%) at 10 years, and 74.5% (95% CI: 66.6% to 83.4%) at 15 years. Overall survival of patients managed according to an activ...Continue Reading

Citations

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