The ileal replaced ureter with the antirefluxing technique for the treatment of hydronephrosis caused by retroperitoneal fibrosis

Objective To explore the value of a new antirefluxing technique of segmental replacement of ureter with ileal in the treatment of hydronephrosis caused by retroperitoneal fibrosis.Methods Eleven cases with hydronephrosis caused by retroperitoneal fibrosis,9 bilateral and 2 unilateral,were treated by using the ileal ureter with proximal antirefluxing technique.The ureter and ileal were connected by using end-to-side anastomosis,and the antirefluxing valve was constructed by fixing the distal part of the ureter(4-5 cm) between psoas muscle and ileal segment(the ileo-psoas tunnel).Results The 11 cases were followed 12-76 months after the operation.Hydronephrosis improved dramatically at 3 months after operation and disappeared after 6 months postoperatively.The renal function recovered to normal.Conclusion The ileal replaced ureter with the ileo-psoas tunnel antirefluxing technique is recommended for treatment of hydronephrosis caused by retroperitoneal fibrosis.