Role of percutaneous urinary diversion in malignant and benign obstructiveuropathy

Objectives: We evaluated the feasibility and effectiveness of percutaneous urinary diversion in patients with obstructive uropathy, Patients and Methods: A total of 206 percutaneous nephrostomies (PCNs) (rig ht-sided in 54, left in 56, and bilateral in 48) were performed in 102 male and 57 female patients 18 to 94 years old. In 125 patients, malignancy was the underlying cause of the obstruction and in 30, benign disease. In four patients, the cause remained unknown. In most patients (N = 154), the acce ss was guided with both ultrasound and fluoroscopy, Results: Percutaneous nephrostomy was successful in 158 patients (99%). Ant egrade ureteral stenting was attempted in 48 patients with a success rate o f 81%. Fifteen days postprocedure, the mean urea and creatinine concentrati ons had declined from 160.8 mg/mL to 63 mg/mL and from 6.9 mg/dL to 2.2 mg/ dL, respectively. In 66% of the patients, renal function returned to normal . In 28%, it improved with no need for hemodialysis, while in 6%, there was no improvement. Advanced age and prostate cancer were negative predictive factors for the improvement of renal function, whereas the BUN and creatini ne concentrations before the procedure and performance of unilateral v bila teral nephrostomies were not. We did not have severe complications. Three p atients received transfusions, and in one patient, a urinoma was drained pe rcutaneously. Patients with malignancy had a median survival of 227 days. Conclusion: Percutaneous urinary diversion under radiologic guidance is a s afe and effective procedure for patients with obstructive uropathy.