Evaluation of radiotherapy according to the aim of treatment for malignant tumors--526 patients in 1977 and 1978.
The effects of radiotherapy were evaluated according to the aim of treatment in 526 patients with malignant tumors. All of them underwent medical examination and were treated by irradiation for the first time in the Department of Radiology, Gunma University Hospital, in 1977 and 1978. They were divided into five groups according to the aim of treatment, which was established before the start of radiotherapy and based on curability. Groups A, B, and C (radical radiotherapy) were composed of patients with localized tumors, and Group D (palliative radiotherapy) of those with advanced or recurrent tumors. The relative five-year survival rate was 107% in Group A (110 patients), 67% in Group B (85 patients),a nd 34% in Group C (151 patients), or 66% in all patients treated radically. The cumulative 24-month survival rate was 16% in Group D (159 patients). In 21 patients treated symptomatically (Group E), the rate of effectiveness of radiotherapy was 71%. In the 526 patients as a whole, the relative five-year survival rate was 46%. We were relatively satisfied with these results, but believe that much more favorable results will be obtained in the near future if a more suitable method of individual treatment for each patient with malignant tumor can be devised.
M
M
Nozaki
N
N
Mitsuhashi
I
I
Takahashi
H
H
Niibe
D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D002675:Child, Preschool; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007223:Infant; D008297:Male; D008875:Middle Aged; D009369:Neoplasms / Q000532:radiotherapy*; D010166:Palliative Care; D011379:Prognosis