The efficacy of chemically-stabilized chlorite-matrix (TCDO) in the management of late postradiation cystitis.

Carcinoma of the uterine cervix is the most common cancer of women in Thailand. The most frequent complication after pelvic radiation for uterine cancer is radiation cystitis. The management of severe late postradiation cystis is far from satisfactory. The objective of this study was to evaluate the efficacy of chemically-stabilized chlorite-matrix (TCDO) in patients with severe radiation cystitis. This study was conducted at the Department of Obstetrics and Gynecology, Ramathibodi Hospital and the Department of Radiology, Siriraj Hospital between September 1997 and September 1998. Twenty patients with grade 3 radiation cystitis after radiotherapy were enrolled into this study. TCDO was administered at a dose of 0.5 ml/kg body weight per day on 5 consecutive days as intravenous infusion over 4 hours. The response rate after the first cycle was 80 per cent with 30 per cent of the patients showing complete response. The follow-up time (13 patients) ranging from 1-9 months revealed no recurrent bleeding. There were no side effects from TCDO therapy. The result suggests good efficacy of TCDO in the treatment of postradiation cystitis.