RESUMO
OBJECTIVE: To investigate the temporal patterns of anorexia, diarrhea, weight loss, and leukopenia in chemoradiation therapy (CRT) for cervical cancer compared with radiation therapy (RT) alone. METHODS: Acute toxicities in 43 patients receiving RT alone and 40 patients receiving CRT were retrospectively analyzed. Patients were treated with a combination of external beam irradiation and high-dose rate intracavitary irradiation. Cisplatin was given once a week for 5 weeks concurrently with the external beam irradiation. CRT was divided into low-dose CRT group (cisplatin, 20-30 mg/m(2), n = 16) and high-dose CRT group (cisplatin, 35-40 mg/m(2), n = 24). Toxicities were evaluated before, every week up to 7 weeks during the cycle, and 12 weeks after initial irradiation, according to the National Cancer Institute Common Toxicity Criteria version 2. RESULTS: In the high-dose CRT group, anorexia during the first 5 weeks, leukopenia after 5 weeks, and weight loss after 3 weeks were significantly higher than those in the RT alone group. In the low-dose CRT group, anorexia between 1 and 2 weeks, leukopenia after 5 weeks, and weight loss between 3 and 4 weeks were significantly higher than those in the RT alone group. Diarrhea between 1 and 2 weeks in the high-dose CRT group (P = 0.037, P = 0.025) and between 2 and 3 weeks in the low-dose CRT group (P = 0.015, P = 0.036) was significantly lower compared with RT alone. CONCLUSION: These data can help us understand when patients are likely to develop maximal toxicities and to manage them with optimal timing.
