Clinical Effects of Percutaneous Transvenous Mitral Commissurotomy in Mitral Stenosis

山添, 優
田村, 雄助
五十嵐, 裕
松原, 琢
田辺, 恭彦
堀, 知行
柴田, 昭
Yamazoe, Masaru
Tamura, Yusuke
Igarashi, Yutaka
Matsubara, Taku
Tanabe, Yasuhiko
Hori, Tomoyuki
Shibata, Akira

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Publication date

February 1995

Publisher

新潟医学会

Journal

issn:0029-0440

Abstract

Percutameous transvenous mitral commissurotomy (PTMC) using Inoue balloon catheter was attempted in 61 patients with symptomatic rheumatic mitral stenosis. There were 49 women and 12 men (mean age 50±11 years). PTMC was performed using a stepwise dilatation technique. After PTMC the mean mitral valve pressure gradient decreased from 11.2±5.6 mmHg to 5.6±2.8 mmHg (p<0.0001) and the mitral valve area (Gorlin formula) increased from 1.1±0.3 cm^2 to 1.8±0.5 cm^2 (p<0.0001). Mitral regurgitation increased by one grade in 15 patients (24.6 %), two grades in 5 (8.2 %) and three grades in 1 (1.6 %). Fifty-nine patients (96.7 %) were symptomatically improved. No patients required cardiac surgery or had major complications. At mean follow-up of 7.4 m...