The mechanism of functional tricuspid regurgitation:insight from two and three-dimensional echocardiography
10.3760/cma.j.issn.1004-4477.2012.03.001
- VernacularTitle:功能性三尖瓣反流机制的二维及三维超声心动图探索
- Author:
Hong MENG
;
Shiwei PAN
;
Xiaopeng HU
;
Kunjing PANG
;
Jianrong LI
;
Xiuzhang Lü
;
Hao WANG
;
Yan WANG
;
Peng LI
- Publication Type:Journal Article
- Keywords:
Echocardiography,three-dimensional;
Tricuspid valve insufficiancy
- From:
Chinese Journal of Ultrasonography
2012;21(3):185-188
- CountryChina
- Language:Chinese
-
Abstract:
Objective To explore determinants of functional tricuspid regurgitation with twodimensional (2D) and three-dimensional (3D) echocardiography,and to provide theoretical basis for surgery treatments.Methods Fifty-six subjects with left-sided valular diseases and tricuspid regurgitation underwent 2D and 3D echocardiography examinations.The tricuspid annulus diameter,the valvular tethering height and right ventricular volume and ejection fraction were measured.Results Based on the degree of tricuspid regurgitation,the patients were grouped into mild regurgitation (group 1) and moderate or more regurgitation (group 2).Comparing the two groups by t test,the tricuspid annulus diameter,the largest distance of tricuspid valvular tethering and the end-diastolic right ventricle volume had significantly enlarged in group 2 ( P ＜0.01 ).And the degrees of tricuspid regurgitation had good correlations with the annulus diameter,the valvular tethering,the right ventricular volume and pulmonary artery systolic pressure.Also,the 3D echocardiography revealed there were some valvular pathologies aggravating regurgitation.Conclusions The degree of functional tricuspid regurgitation is mainly determined by the annulus dilation and pulmonary hypertension.Further more,the 3D echocardiography can give us more details of the valves.
