抄録
Although it was reported by M. W. Stearns et al. that rectal carcinoma could be treated with good results using pre-operative irradiation of X-ray, we examined the effects of pre-operative irradiation and the influences on surgical operations in the cases of rectal carcinomas irradiated pelvic cavity with 69Co γ-ray.
Conclusions:
1) irradiation field 15×15cm
two opposed fields
each dose 250 R six times a week
total dose 5, 000 R/3∼3.5 weeks
interval between last irradiation and operation 10∼21 days
According to the above mentioned radiation method, there were no disturbances for the surgical operations and for the post-operative conditions.
2) Leucopenia, (under 3, 500/mm3) loss of appetite and diarrhea appeared as sideeffects of irradiation in a few cases. However it was not necessary to stop the radiation schedules when we used transfusion of nutritious fluids.
3) Pre-operative irradiations were very effective since unchanged cancer cells could not be seen in the most of removed tumor tissues.
4) Strict judgment on the value of pre-operative irradiation should be hold until we get the clear elevation of survival rate.
