ABSTRACT
Objective To observe the effect of high-dose three-dimensional conformal radiotherapy (3DCRT) on recurrence and metastasiscervical cancer.Methods Sixty-one recurrence or metastasis cervical cancer patients were divided into two groups.Group high-dose 3DCRT (high-dose group) received radiotherapy using 6 MV X ray 4-8 Gy per field,three times per week,with total dose of 35-50 Gy.The other group (other group) received radiotherapy using 6 MV X ray 2 Gy per field,5 times per week,with total dose 40-60 Gy.The short-term efficacy and complications between the two groups were compared.Results The tumor regression rates of the two groups were 76.7 ％ (23/30) and 67.7 ％ (21/31) (x2 =0.604,P ＞ 0.05),which had no significant difference.The 1-year survival rates [63.3 ％ (19/30),54.8 ％ (17/31)] (x2 =0.454,P ＞ 0.05)and the 2-year survival rates [26.7 ％ (8/30),29 ％ (9/31)] (x2 =0.042,P ＞ 0.05) had no significant difference either,but in high-dose group,the bone marrow inhibition rate [53.3 ％ (16/30)] was significantly lower than other group [77.4 ％ (24/31)] (x2 =3.91,P ＜ 0.05),the reaction of digestive tract [56.7 ％ (12/30)] was also significantly lower than other group [56.7 ％ (12/30)] (x2 =4.09,P ＜ 0.05).Conclusion Compared with the other group,the high-dose 3DCRT has the same short-term efficacy but lower short-complications,and the quantity of life is better than the other group.