Results of radiotherapy for oral malignancies in elderly patients more than 80 years of age.

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  • ８０歳以上の口腔領域がん患者に対する放射線治療成績

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Abstract

Between 1976 and 1990, 110 elderly patients of oral malignancies were treated by radiotherapy at the Department of Radiology, Tokyo Medical and Dental University. These patients more than 80 years of age were followed 2 to 16 years.<br>Ninety-seven patients were histlogically proved squamous cell carcinomas, 3 were verrucous carcinomas, 8 were carcinomas originated from salivary gland and 2 were malignant lymphomas.<br>Eighty-one patients were irradiated curatively and others were palliatively irradiated.<br>In case of curative irradiation group, 35 patients underwent brachytherapy using Au-198 grains mainly, because of its easy applicability under local anesthesia. Au-198 grains were used in 28 cases and in other 7 cases Ra needles and Ir-192 pins were used.<br>The results were as follows.<br>1) More than 2 years local control rate was 41% in all curative treatment group and 51% in brachytherapy group.<br>2) Five-year crude survival rate was 30% in all curative treatment group and was 40% in brachytherapy group.<br>3) Sixteen patients survived more than 5 years and these cases had no lymph node and distant metastasis during the courses.<br>In conclusion, our results suggest that oral cancer patients more than 80 years of age should be treated by curative radiotherapy when the perfomance status is permissible.

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