2024 Volume 37 Issue 2 Pages 397-402
In ileal urinary diversion, the clinical significance of retroperitonealization of the uretero-enteric anastomosis is unclear. Herein we retrospectively evaluated the relationship between retroperitonealization and the incidence of hydronephrosis in 223 patients with ileal conduit or an ileal neobladder who received follow-up computed tomography at our hospital between 2005 and 2016. The status of the retroperitonealization was determined by computed tomography. In seven patients, retroperotonealization failed. Of them, five patients developed intermittent hydronephrosis. Univariate analysis revealed that, patients with failure of the retroperotonealization had a significantly high incidence of hydronephrosis. This study suggests that retroperitonealization of the uretero-enteric anastomosis is effective for preventing the development of hydronephrosis.