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  • Title: [Clinical evaluation of radiation complications with various methods of radiotherapy for vaginal cancer].
    Author: Kanaev SV, Turkevich VG.
    Journal: Vopr Onkol; 1997; 43(2):183-7. PubMed ID: 9214119.
    Abstract:
    The investigation was concerned with complications development in 133 cases of primary vaginal carcinoma (VC) who had been treated with combined (distance and contact treatment) or low-dosage (LD), medium-dosage (MD) or high-dosage (HD) contact irradiation. Time-dose-fractionation (TDF), cumulative radiation effect (CRE) and linear-quadratic (LQ) ("extrapolated dose of response") were used to evaluate normal tissue response. Early- and late-onset radiation injuries of vaginal mucosa, urinary bladder and rectum were compared vis-a-vis dosage which was calculated on the basis of HDF model. Dosage exceeding the limits of connective tissue tolerance was responsible for the development of early-onset epithelitis, cystitis and rectitis in cases of LD- or MD-brachytherapy of vaginal carcinoma or when the latter was conducted in conjunction with distance therapy. However, early-onset epithelitis and cystitis might appear when dosage remained within tolerance limits. This occurred as a result of HD-contact treatment or when the latter was used as a component of combined therapy. Most late-onset moist vaginal epithelites, rectites and recto-vaginal fistuals were caused by dosage in excess of tolerance. Late- and early-onset vaginal epithelitis was observed with tolerable dosage, too, if HD-brachytherapy alone was used or as a component of combined treatment.
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