A case of ileal ureter with proximal antireflux system

Background: The initial experience of constructing a new antirefluxing valv e at the uretero-ileal junction with ileal substitution is reported. Methods: A new antirefluxing valve was constructed at the uretero-ileal jun ction with ileal substitution by fixing the distal part of the ureter betwe en the psoas muscle and ileal segment (the ileo-psoas tunnel technique). Discussion: The valve created by the technique has been working effectively for preventing the ileo-ureteral reflux. Pre-operative hydronephrosis was improved and the renal function has been well preserved. Conclusion: The ileo-psoas tunnel technique is worthwhile when ileal substi tution of the ureter is indicated.