Changes in intrarend vascular resistance index and the
levels of NAG and GAL before and after ESWL
GAO Fu-yuan WANG Cun-long ZHANG Ting-ji
ZHANG Zhi-hong WANG Li-ming SUN Yun-chai
(Department of Urology,the Affiliated Tangshan workders Hospital Hebei Medical University,Tangshan,Hebei,063000)
Abstract:Purpose:To evaluate intrarenal vascular resistance index (RI) and the levels of β-D-galactosidase (GAL) and N-acetyl-β-D-glucosaminidase (NAG) in urine before and after ESWL.Methods:RI,the levels of NAG and GAL were measured in 50 renal lithiasis cases treated by ESWL.Results:RI in the treated kindeys and NAG in urine significantly increased after ESWL (P<0.01),whereas,RI in the contralateral kindeys has no difference statistically before and after ESWL.About one and two weeks after ESWL the levels of GAL gradually elevated and the ratios of GAL/NAG had an increasing tendency.Conclusions:RI、NAG and GAL might seve as effective markers to treat the renovascular damage,the ratio of GAL/NAG is more sensitive than simple NAG or GAL as an indicator of the intrarenal injury and recovery after ESWL.
Key words:Kidney calculi Extracorporeal shock wave lithotripsy Vascular resistance β-Galactosidase Acetylglucosaminidase▲