Objective: To investigate the platelets expressing P-selectin(PS) in patients with rheumatic mitral stenosis(MS) and the intervention of PBMV(percutaneous balloon mitral valvuloplasty).

• 目的:探讨风湿性心脏瓣膜病二尖瓣狭窄(以下简称风心二狭)患者体内P选择素(以下简称PS)变化及经皮二尖瓣球囊成形术(PBMV)干预作用。