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  • Title: Postoperative radiotherapy in early stage carcinoma of the uterine cervix: treatment results and prognostic factors.
    Author: Yeh SA, Wan Leung S, Wang CJ, Chen HC.
    Journal: Gynecol Oncol; 1999 Jan; 72(1):10-5. PubMed ID: 9889023.
    Abstract:
    PURPOSE: The objective was to investigate the effect of pathologic parameters and other variables on treatment outcome for patients with International Federation of Gynecology and Obstetrics (FIGO) stage IB, IIA cervical carcinoma, as well as to assess the morbidities attributable to radical surgery combined with postoperative radiotherapy. MATERIALS AND METHODS: Between January 1980 and June 1994, 179 women with FIGO stage IB, IIA carcinoma of the uterine cervix were treated with radical hysterectomy and postoperative irradiation. The median follow-up of alive patients was 6.8 years. All patients received 44-60 Gy external irradiation. One hundred fifty-nine patients received 3-10 Gy intracavitary brachytherapy. The data were analyzed for overall survival, disease-free survival, pelvic control, and treatment-related complications. RESULTS: The 5-year overall survival rate, disease-free survival rate, and pelvic control rate for the 179 patients were 72, 74, and 90%, respectively. The 5-year overall survival rate was 81% for patients without pelvic lymphadenopathy and 53% for those with pelvic lymphadenopathy (P = 0.0000). Other independent prognostic factors for overall survival included tumor differentiation and the interval between operation and initiation of radiotherapy. For the endpoint of disease-free survival, pelvic lymph node status, tumor differentiation, the duration of interruption of radiotherapy, and the interval between operation and radiotherapy were of independent prognostic significance. As pelvic control was concerned, the 5-year pelvic control rate was 90% and only the duration of interruption of radiotherapy was noted as an independent predictor of pelvic control. Distant metastases were noted in 43 patients (24%); the most common sites were lung (10%), liver (6%), and bone (6%). The overall 5-year intestinal and urinary complication-free rate was 66 and 82%, respectively. The overall incidence of grade 3 or above late rectal and urinary sequelae was 10%. For patients sustaining leg lymphedema after radiotherapy, there was higher incidence of severe leg cellulitis which warranted antibiotics treatment. CONCLUSION: These prognostic factors should be considered in patient counseling and treatment planning. Based on these factors, a more aggressive treatment to improve survival in these subsets of high-risk patients might be justified. New therapeutic regimens and modalities aimed to overcome treatment failure should be investigated.
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