Gross haematuria and severe bleeding from the large intestine occurred after pelvic radiotherapy in an 84-year-old woman with cancer of the uterus. Hyperbaric oxygenation treatment at 2 atmospheric absolute pressures for 60 minutes daily over 30 days and infusion of prostaglandin E1 abolished completely haematuria and tarry stool, and reversed the endoscopic findings of radiation cystitis and colitis.

Miura, Sasagawa, Kubota, Iijima, Sawamura, Nakada, , , (1996). Effective hyperbaric oxygenation with prostaglandin E1 for radiation cystitis and colitis after pelvic radiotherapy. International urology and nephrology, 1996 ;28(5):643-7. https://www.ncbi.nlm.nih.gov/pubmed/9061423