Velocity vector imaging in evaluation of impact of hemodialysis on left ventricular longitudinal strain of myocardium in uremia patients
10.13929/j.1003-3289.201812129
- VernacularTitle: 速度向量成像分层应变技术评价血液透析对尿毒症患者左心室心肌即时纵向应变的影响
- Author:
Yang LI
1
Author Information
1. Department of Ultrasonography, People's Hospital of Zhengzhou University, Henan Provincial People's Hospital
- Publication Type:Journal Article
- Keywords:
Renal dialysis;
Ultrasonography;
Uremia;
Velocity vector imaging;
Ventricular function, left
- From:
Chinese Journal of Medical Imaging Technology
2019;35(7):997-1001
- CountryChina
- Language:Chinese
-
Abstract:
Objective: To investigate the value of velocity vector imaging (VVI) technique in evaluation of the impact of hemodialysis on left ventricular longitudinal strain of myocardium in uremia patients. Methods: Echocardiography was performed in 35 uremia patients who underwent high flux hemodialysis before and 2 h after dialysis. The peak systolic longitudinal strain (LPS) of 3 layers at 17 segments of left ventricular were obtained using VVI software after conventional measurement. Results: The left atrial diameter, left ventricular end diastolic and end systolic diameter, left ventricular end diastolic and end systolic volume as well as stroke volume reduced after dialysis (all P<0.05). There was no significant difference of left ventricular ejection fraction (P=0.183). Compared with before dialysis, the LPS of left ventricular global all layer and subendocardial layer, the all layer, subendocardial layer, middle layer and epicardial layer of the basal segment, the all layer and subendocardial layer of middle segment were lower than those before dialysis (all P<0.05). No significant difference was found in LPS of global epicardial, middle layer, epicardial layer of middle segment, all layer and three layers of apical segments before and 2 h after dialysis (all P>0.05). Conclusion: VVI technique can sensitively and accurately evaluate the impact of hemodialysis on the global and local systolic function of left ventricular myocardium in uremic patients.
