Evaluation of systolic flow velocity patterns of the pulmonary vein in patients with atrial fibrillation by transesophageal echocardiography
- VernacularTitle:心房颤动患者收缩期肺静脉血流特征的超声研究
- Author:
Wei ZHANG
;
Enkui HAO
;
Yun ZHANG
- Publication Type:Journal Article
- Keywords:
Echocardiography,transesophageal;
Atrial fibrillation;
Pulmonary veins;
Hemodynamics
- From:
Chinese Journal of Ultrasonography
2003;0(07):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective To evaluate the effect of beat to beat alterations in the cardiac cycle length on systolic flow velocity patterns of the pulmonary vein in patients with atrial fibrillation(AF).Methods Pulmonary vein flow was recorded in 20 control subjects and 74 patients with AF (16 with nonvalvular AF,22 with mild to middle mitral stenosis,and 36 with severe mitral stenosis) by transesophageal echocardiography.The peak velocities of the early systolic reversal wave (PVR) and the systolic forward wave (PVS) were measured.The relationships between the preceding R-R intervals and PVR,PVS were analyzed.Results The early systolic reversal wave was detected in all patients with AF.PVR was significantly lower in patients with severe mitral stenosis than that in patients with nonvalvular AF and mild to middle mitral stenosis.The preceding R-R interval had a significant negative correlation with PVR.PVS was significantly lower in patients with AF than that in controls.The preceding R-R interval had a significant positive correlation with PVS.Conclusions PVR and the systolic forward wave vary with disease conditions and preceding R-R intervals in atrial fibrillation.The evaluation of systolic pulmonary venous flow velocity patterns provides important information about left atrial hemodynamic abnormalities.
