Knowledge regarding gender-specific results of percutaneous edge-to-edge mitral valve repair is scarce. The aim of this study was to investigate gender differences in outcomes in a cohort of patients treated with MitraClip implantation. A multicenter registry of 173 patients treated with MitraClip prostheses from 2009 to 2012 at 3 experienced centers was performed. One hundred nine patients (63%) were men. Men were younger (mean age 73 +/- 10 vs 79 +/- 9 years, p = 0.001) and had a higher prevalence of previous coronary bypass graft surgery (34% vs 13%, p = 0.002), previous myocardial infarction (46% vs 20%, p = 0.001), and diabetes mellitus (26% vs 11%, p = 0.020). There were no differences regarding New York Heart Association (NYHA) functional class before the intervention (NYHA class III or IV in 95% of men vs 97% of women, p = 0.472) or the cause of mitral regurgitation (MR) (functional in 58% of men vs 48% of women, p = 0.233). Men exhibited significantly larger ventricles (mean indexed left ventricular endsystolic diameter 2.4 +/- 0.8 vs 2.0 +/- 1.6 cm/m(2), p = 0.002, and mean indexed left ventricular end-diastolic volume 92.7 +/- 46.1 vs 59.9 +/- 24.6 ml/m(2), p <0.001). At 1 month, there were no differences between groups in the reduction of MR or NYHA functional class (MR grade <= 2 + in 98.2% of men vs 96.8% of women, p = 0.586, and NYHA class <= II in 78.3% of men vs 77% of women, p = 0.851). At 6 months, results were maintained (MR grade <= 2 + in 89.5% of men vs 96.8% of women, p = 0.414, and NYHA class <= II in 73.1% of men vs 74.2% of women, p = 0.912). After a mean follow up period of 16.1 +/- 11.1 months, no difference was found between groups in the incidence of death or admission for heart failure (log-rank p = 0.798). In conclusion, MitraClip implantation seems to be an equally safe and effective treatment of MR in men and women. (C) 2015 Elsevier Inc. All rights reserved.
Effect of gender on results of percutaneous edge-to-edge mitral valve repair with MitraClip system
Pighi, Michele;
2015-01-01
Abstract
Knowledge regarding gender-specific results of percutaneous edge-to-edge mitral valve repair is scarce. The aim of this study was to investigate gender differences in outcomes in a cohort of patients treated with MitraClip implantation. A multicenter registry of 173 patients treated with MitraClip prostheses from 2009 to 2012 at 3 experienced centers was performed. One hundred nine patients (63%) were men. Men were younger (mean age 73 +/- 10 vs 79 +/- 9 years, p = 0.001) and had a higher prevalence of previous coronary bypass graft surgery (34% vs 13%, p = 0.002), previous myocardial infarction (46% vs 20%, p = 0.001), and diabetes mellitus (26% vs 11%, p = 0.020). There were no differences regarding New York Heart Association (NYHA) functional class before the intervention (NYHA class III or IV in 95% of men vs 97% of women, p = 0.472) or the cause of mitral regurgitation (MR) (functional in 58% of men vs 48% of women, p = 0.233). Men exhibited significantly larger ventricles (mean indexed left ventricular endsystolic diameter 2.4 +/- 0.8 vs 2.0 +/- 1.6 cm/m(2), p = 0.002, and mean indexed left ventricular end-diastolic volume 92.7 +/- 46.1 vs 59.9 +/- 24.6 ml/m(2), p <0.001). At 1 month, there were no differences between groups in the reduction of MR or NYHA functional class (MR grade <= 2 + in 98.2% of men vs 96.8% of women, p = 0.586, and NYHA class <= II in 78.3% of men vs 77% of women, p = 0.851). At 6 months, results were maintained (MR grade <= 2 + in 89.5% of men vs 96.8% of women, p = 0.414, and NYHA class <= II in 73.1% of men vs 74.2% of women, p = 0.912). After a mean follow up period of 16.1 +/- 11.1 months, no difference was found between groups in the incidence of death or admission for heart failure (log-rank p = 0.798). In conclusion, MitraClip implantation seems to be an equally safe and effective treatment of MR in men and women. (C) 2015 Elsevier Inc. All rights reserved.
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