Immediate and Late Outcomes after Percutaneous Mitral Co,mmissurotomy.
10.4070/kcj.1997.27.3.318
- Author:
Myoung Mook LEE
;
Tae Jin YOUN
;
Dae Won SOHN
;
Chul Ho KIM
;
Byung Hee OH
;
Yun Shik CHOI
;
Young Woo LEE
- Publication Type:Original Article
- Keywords:
Mitral stenosis;
Percutaneous mitral commissurotomy
- MeSH:
Disease-Free Survival;
Echocardiography;
Hemodynamics;
Humans;
Mitral Valve;
Mitral Valve Insufficiency;
Mitral Valve Stenosis;
Multivariate Analysis;
Seoul
- From:Korean Circulation Journal
1997;27(3):318-325
- CountryRepublic of Korea
- Language:Korean
-
Abstract:
BACKGROUND: Percutaneous mitral commissurotomy(PMC) has been known as an effective therapeutic modality for moderate to severe mitral stenosis. However, long-term results and factors influencing late outcome after PMC remain to be elucidated. MATERIALS AND METHODS: Three hundred and forty-six patients received PMC at Seoul National University Hospital between August, 1988 and March, 1996. We evaluated long-term results of these patients and assessed demographic, clinical, echocardiographic and hemodynamic variables in order to identify predictors of immediate and late outcomes. RESULTS: PMC was completed without major complication or technical failure in 339(98%) out of 346 cases. A good immediate result was obtained in 67% of cases. Multivariate study identified echocardiographic score(P=0.004) and left atrial volume(P=0.009) as independent predictors of immediate outcome. The estimated 3-year and 5-year event-free survival rates were 95.8+/-2.5% and 90.6+/-4.3%, respectively. According to multivariate analysis, the independent predictors of late outcome were pre-PMC left atrial volume(P=0.03), post-PMC mitral valve area(P=0.01), and severity of mitral regurgitation after PMC(P=0.03). CONCLUSION: Percutaneous mitral commissurotomy as a treatment for patients with mitral stenosis is safe, and achives good long-term results. Pre-procedural echocardiographic score, left atrial volume, post-procedural mitral valve area, and severity of mitral regurgitation affect the immediate and late outcomes after PMC.
