ObjectiveTo compare and analyze the clinical and adverse effects of static intensity-modulated radiotherapy (IMRT) and volumetric modulated arc therapy (VMAT) in the treatment of postoperative cervical cancer patients. MethodsA total of 100 patients with cervical cancer who needed radiotherapy after the operation in our hospital from January 2016 to August 2018 were selected as the research objects, and they were divided into control group (60 cases) and observation group (40 cases) according to their wills and treatment requires. Patients in the control group received IMRT, and the observation group received VMAT. The exposure doses of organ at risk, the occurrence of acute toxic side effects, and one-year survival status were compared between the two groups. ResultsThe V40 of the rectum and small intestine in the observation group was significantly lower than that in the control group, and the difference was statistically significant (P＜0.05). There were no statistically significant differences in the V20 and V30 of the rectum and small intestine, and V20，V30 and V40 of the bladder of the observation group as compared with the control group (P＞0.05). As compared with the control group, the observation group yielded a lower severity of digestive tract, urinary system reaction and bone marrow, whereas a higher one-year survival rate, with statistically significant differences (P＜0.05). ConclusionEmploying the VMAT technique is more effective to protect organs at risk, alleviate relative acute toxic side effects of radiotherapy, and increase the one-year survival rate of patients as compared with the IMRT technique in radiotherapy after radical hysterectomy.

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