Purpose:To improve the understanding of obstructive anuria of upper urinary tract(OAUUT) and upgrade the diagnosis and treatment level.Methods:Causes and treatments of 45 cases OAUUT were reviewed.Results:34 cases obtained normal renal function and 9 cases with azotemia after three months of operation.Conclusions:The main risk factors of OAUUT is urolithiasis (Stone disease) accounting for 77.8%. Ureter catheterization,double-J tube insertion under cystoscope and operation should be the main measures to relieve obstruction.

Purpose:To further improve the therapeutic results of ESWL and to reduce the complications of ESWL. Methods: Clinical materials of 5 140 cases of patients with urinary calculi underwent ESWL from 1989 to 1999 were analyzed retrospectively. Results: Ignorance of the routine examination in urine, blood, hepatic func tion and specialization etc, the serious complications may be produced by ESWL. Low energy and emergency ESWL have obtained satisfactory results. Conclusions:Every routine examination is essential to secure the patient to get satisfactory therapeutic result from ESWL and prevent the complication from occurring. Complete dis charge rate of stones was affected by the tissue structure and type of the renal pelvis and calyces, beside the site of stones.