Velocity vector imaging in evaluation of impact of hemodialysis on left ventricular longitudinal strain of myocardium in uremia patients / 中国医学影像技术

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 P0.05). 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.