Objective to find a simple and noninvasive method for estimating pulmonary artery systolic pressure (PASP) in patients underwent percutaneous balloon mitral valvuloplasty (PBMV).
目的探求一种简便，无创的方法评价行经皮二尖瓣球囊成形术(PBMV)病人的肺动脉压水平。
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Objective:To observe whether percutaneous transluminal ballonmitral valvuloplasty (PTBMV) can improve the pulmonary function of patients with single mitral stenosis (MS).