- Unstable renal function in the month prior to registration defined as a creatinine rise of 1 mg/dL Prior partial or complete small bowel obstruction either before or after radical cystectomy Prior radiotherapy to the pelvis; o Prior radiation therapy for a different cancer or disease process is allowed, provided there will be no overlap of radiation therapy fields between the participants prior and current course of radiation therapy, radiotherapy was completed more than four weeks from enrolling in this study.