Absorbed dose in a tumor and the efficacy of radiation therapy in cervical cancer

The results of therapy of patients with cervical cancer are analysed. It has been established that doses of 50-70 Gy ensure high 5-year survival rates of patients with Stage 1 cervical cancer. In patients with Stage 2 and Stage 3 cervical cancer survival rates were the highest within the range of 50-70 Gy. A further increase in the absorbed dose level deteriorated the survival rates of the patients, the frequency of local tumor control was not elevated. It is recommended that optimum dose levels be adhered to even during treatment of patients with disseminated carvical cancer