Aim: To investigate the adverse effect of treatment prolongation on the local control and survival of the cervical carcinoma of the uterus.
Patients And Method: Two hundred and sixteen patients with stage IIB and III cervical carcinoma treated with a combination of external radiation and high-dose rate (HDR) intracavitary irradiation between 1978 and 1989 were retrospectively studied. A multivariate analysis was used to determine the effect of treatment time on local control and survival.
Results: Overall treatment time was the most highly significant factors for local control in the multivariate analysis (p = 0.0005). The 5-year cumulative relapse rates were significantly different with the treatment times 35 to 42 days: 9% versus 43 to 49 days: 19% versus 50 to 62 days: 42% (p = 0.001). The second most significant parameter was stage classification (p = 0.02). Concerning relapse-free survival, stage classification (p = 0.0001), overall treatment time (p = 0.0035) and hemoglobin level (p = 0.0174) were the 3 most important prognostic factors, although there was no relationship between treatment time and late complications.
Conclusion: These results suggest that prolongation of treatment time is associated with decreased local control and survival in patients treated with external radiation and HDR intracavitary irradiation.
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