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  • Title: [Prognostic factors after surgery and adjuvant radiotherapy in cervical cancers. A retrospective analysis of 298 patients after surgery and adjuvant radiotherapy].
    Author: Hänsgen G, Richter K, Gerlach R, Kuhnt T, Dunst J.
    Journal: Strahlenther Onkol; 2005 May; 181(5):285-92. PubMed ID: 15900424.
    Abstract:
    PURPOSE: To determine prognostic factors in patients with cervical cancer treated with surgery followed by radiotherapy. PATIENTS AND METHODS: In a retrospective analysis, patients treated at the Department of Radiotherapy, University of Halle-Wittenberg, Germany, from 1980 through 1993 were evaluated for local control, survival and treatment sequelae with special emphasis on prognostic factors. 298 patients (age 23-81 years, median 46 years) with cervical cancers were treated with surgery followed by radiotherapy to a minimum of 50 Gy. 250 patients received radiotherapy after radical hysterectomy with pelvic lymphadenectomy and 48 patients after hysterectomy. Most of the cancers were squamous cell carcinomas (81%) with few adenocarcinomas (12.4%). Grading was G1/G2 in 28.9% of the patients and G3/G4 in 39.6%. RESULTS: The 5-year overall survival was 68.8% for the whole group, 70.5% for squamous cell carcinomas (n = 241), 64.4% for adenocarcinomas (n = 37; not significant), 80% for G1/G2 tumors (n = 86), and 69% for G3/G4 carcinomas (n = 118; p = 0.074). Survival dependent on tumor size and positive nodes was 76.2% (n = 94) for pT1N0, 65.8% for pT1N+ (n = 31), 68.2% for pT2N0 (n = 62), and 41.4% for pT2N+ (n = 35). An impact of grading on 5-year survival was only found in patients with positive nodes: G1/G2N0 84% (n = 62) versus G1/G2N+ 64.8% (n = 23); G3/G4N0 79.6% (n = 71) versus G3/G4N+ 39.9% (n = 31). The number of positive nodes was the strongest prognostic factor. Multivariate analysis (Cox regression) established a risk factor of 3.06 (p < 0.01) for positive nodes, of 1.7 for grading G1/G2 versus G3/G4 (p = 0.087), and of 1.3 for tumor size (pT1 vs. pT2; p = 0.079). There were no differences in the clinical outcome between patients in stage pT1 with or without lymphadenectomy (75% [n = 130] vs. 79% [n = 39]). CONCLUSION: In patients with cervical cancers treated with surgery and radiotherapy, positive nodes were an independent prognostic factor for local control and survival and should be an indication for additional chemotherapy. A value of lymphadenectomy for survival in this group of irradiated patients could not be established.
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