Role of ultrasonic three -dimensional speckle tracking imaging in assessment left ventricular systolic function in patients with uremia before and after hemodialysis / 中国基层医药

ABSTRACT

Objective To assess the left ventricular global systolic function changes using ultrasonic three -dimensional speckle tracking imaging (3 D -STI )in patients with uremia undergoing high -flux hemodialysis (HFHD)treatment.Methods 86 patients with uremia and 59 healthy volunteers were selected.Participants of control group underwent plasma brain natrinuretic peptide(BNP)examinations before 3D -STI examinations.All the uremia patients received HFHD therapy,and underwent BNP and 3D -STI examinations before and after 4 weeks HFHD therapy.Parameters of left ventricular three dimensional global area strain(GAS),global circumferential strain (GCS),global longitudinal strain(GLS)and global radial strain(GRS)were measured in each group.The correlation between each 3D -STI parameters and BNP level were analyzed.Results Compared with the control group,GAS, GCS,GLS and GRS of left ventricular were significantly lower(t =7.564,6.866,7.946,5.477,all P <0.05)and BNP level in the control group were significantly higher in the uremia group[(60.75 ±17.22)ng/L vs.(792.68 ± 184.56)ng/L,t =30.876,P <0.05].After HFHD therapy 4 weeks,GAS,GCS,GLS and GRS of left ventricular were significantly higher(t =4.233,5.933,6.546,2.959,all P <0.05)and BNP level were lower(t =27.533,P <0.05) than before treatment in the uremia group.GAS,GCS,GLS and GRS of left ventricular were negatively correlated with BNP level(r =-0.51,0.64,-0.46,-0.43,all P <0.05).Conclusion 3D -STI can accurately evaluate the changes of left ventricular global systolic function in patients with uremia before and after hemodialysis,and provide reliable basis for clinical treatment and efficacy assessment.