Korean Circ J.  2006 Mar;36(3):208-213. 10.4070/kcj.2006.36.3.208.

Comparison of Long-Term(Over 10 Years) Outcome of Percutaneous Mitral Balloon Valvuloplotomy between Moderate and Severe Mitral Stenosis

• Kim JS
• Joung B
• Kang SM
• Ha JW
• Ko YG
• Choi D
• Jang Y
• Chung N
• Shim WH
• Cho SY
• Kim SS
• Kim C
• Nam JM

• KMID: 2029000
• DOI: http://doi.org/10.4070/kcj.2006.36.3.208

Abstract

BACKGROUND AND OBJECTIVES: Percutaneous mitral balloon valvuloplotomy (PMV) is a safe and effective procedure for the treatment of mitral stenosis (MS); however, its long-term results according to the severity of MS remain unknown. The aim of this study was to compare the long-term results of PMV between moderate and severe MS.
SUBJECTS AND METHODS
The immediate and long-term outcomes of 786 patients (198 male, mean age; 43 years) who underwent PMV at a single referral center, between 1988 and 2000, were analyzed. The clinical and echocardiographic data were compared between moderate (n=357) and severe MS (n=429).
RESULTS
Optimal results were gained in 618 (79%) patients, including 80 and 76% moderate and severe MS cases, respectively (p=0.13). Acute complications occurred in 85 patients (11%), but without significant difference between the two groups. After a mean follow-up period of 94 months (range, 6 to 210 month), the 5 year event-free survival rate was better in moderate (88%) than in severe MS (79%), but the 10 year event-free survival rates were no different (65% vs. 65%). Independent predictors for better prognosis were a lower echo score (< or =8)(p=0.017, HR=0.67), a larger mitral valve area after the PMV (> or =1.7 cm2)(p=0.002, HR=0.65), less mitral regurgitation (CONCLUSION
The immediate and long-term outcomes of PMV for moderate MS were no better after 9 years than those for severe MS. Therefore, PMV for moderate MS should be considered in selected cases with a favorable MV morphology.

Keyword

Mitral stenosis; Balloon valvuloplasty

MeSH Terms

Atrial Pressure
Balloon Valvuloplasty
Disease-Free Survival
Echocardiography
Follow-Up Studies
Humans
Male
Mitral Valve
Mitral Valve Insufficiency
Mitral Valve Stenosis*
Prognosis
Referral and Consultation