الفهرس 
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Abstract
To present our clinical outcomes in the management of anuria in adult patients caused by ureteral calculi by using of ureteroscopy and pneumatic lithotsripy.
Materials and methods
Thirty patients presented with calcular anuria with ages between 28 and 56 years. The presentation was anuria with mean serum creatinine8.8 mg/dl (8.8±3.6) and potassium level :5 mmol/L (4.1± 2.1). There were bilateral ureteric stones in 18 (60%) and unilateral in 12 (40%) with single functioning kidney. 48 ureteroscopic procedures were performed for 30 patients including bilateral ureteroscopy in 18 patients. Stone distribution as follow: 24 in lower ureter,9 in middle ureter and 15 in upper ureter . Stone disintegration was carried out by pneumatic lithotripsy. Post-operatively, monitoring of urine output, serum creatinine and K levels was done until basal values were obtained.
Results
Ureteroscopy was performed for all 30 patients (48procedures), . The operative time was 60 min (45–75). . The stone-free rate 3 weeks after ureteroscopy was 95.8%.in lower ureter ,77.7% in middle ureter,66.66% in upper ureter. There were mucosal abrasions in 7 (23.3%) , perforation in one case , and mild to moderate haematuria in 9 (30%), and high fever in three patients (10 %). Failure of stone clearance occurred in 8 ureteroscopic procedures due to intra renal migration. Serum creatinine and potassium levels returned to normal within 7–10 days. Urine output gradually reached normal level within a week.
Conclusion: Urgent Ureteroscopic intervention represent an effective and safe modality for the treatment of calcular anuria with certain precautions whern using pneumatic lithotripsy.