Objective: To evaluate the echocardiographic effect before and after small balloon percutaneous balloon mitral valvuloplasty (PBMV) in patients with severe mitral stenosis (MS).

目的：探讨彩色多普勒超声心动图在重度二尖瓣狭窄(MS)行小球囊经皮二尖瓣球囊成形术(PBMV)前后的作用。

youdao

The interval between S2 and the OS is related to the severity of mitral stenosis. The more severe the stenosis, the shorter the S2-OS interval.

S2和开瓣音间隔时间跟二尖瓣狭窄程度有关，狭窄越严重，S2-OS间期就越短。

youdao

Combined cardiac diseases included coronary heart disease (2 cases), rheumatic mitral stenosis (2 cases), and severe mitral insufficiency (3 cases), and severe tricuspid insufficiency (4 cases).

合并冠状动脉病变2例，风湿性二尖瓣狭窄2例，二尖瓣中重度关闭不全3例，三尖瓣重度反流4例。

youdao