Multicenter experience with metallic ureteral stents for malignant and chronic benign ureteral obstruction.

Background And Purpose: A new coil-based metallic ureteral stent offers greater radial strength with longer indwelling time compared with plastic stents. This multicenter retrospective study reviews the clinical experience with this stent for malignant or benign chronic ureteral obstruction.

Patients And Methods: Patients had stent placement in a retrograde fashion.