Blood flow dynamic changes after mitral valve replacement operation in patients with mitral valve stenosis by color Doppler echocardiography
- VernacularTitle:超声心动图对二尖瓣狭窄瓣膜置换术后血流动力学改变的研究
- Author:
Zhen ZHANG
;
Wujun WANG
;
Zhenkang WANG
- Publication Type:Journal Article
- Keywords:
Echocardiography;
Mitral valve stenosis;
Heart valve prosthesis;
Hemodynamics
- From:
Chinese Journal of Ultrasonography
2003;0(08):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To study the blood flow dynamic c hanges after mitral valve replacement(MVR) operation in patients with mitral valve stenosis by color Doppler echocardiography. Methods Thirty-seven- patients with mitral stenosis after MVR operation were analyzed with color Doppler echocardiography retrospectively, the observed items including dimension of left atrium, tricuspid valve backflow velocity, pulmonary artery systolic pressure(PAPS) and left ventricular ejection fraction(LVEF).Relativity analysis was conducted between PAPS and trans-mitral valve pressure(MV?P). Results All the patients survived healthy, the average follow-up time was 15.8- months. The follow-up data suggested that the dimension of left atrium, tricuspid valve backflow velocity and PAPS decreased significantly while LVEF increased significantly to the pre-operation. PAPS was in positive correlation with MV?P and the difference between PAPS and MV?P increased according to MV?P.Conclusions MVR can ameliorate flow dynamics effectively in patients with mitral stenosis, PAPS is in positive correlation with MV?P, senior stenosis existed within pulmonary circulation in patients with severe pulmonary hypertension.
