[Intraoperative radiotherapy of XXXX ].

@entity1 @entity298 @entity75 @entity5 @entity1157 @entity3 @entity356
Clinical results of intraoperative radiotherapy for @entity356 were reported. One hundred and five cases of @entity356 were treated by intraoperative radiotherapy. Indications for the intraoperative radiotherapy were determined as follows: 1) The @entity75 ( @entity5 ) located at the level of gastric corpus or antrum (M, A); 2) At least, the @entity5 should be resected; 3) Neither liver @entity3 nor peritoneal dissemination was noticed; 4) Lymph node @entity3 were limited to the second group (less than N3); 5) Cases of which @entity5 -infiltration-depth reached to the serosal surface (S3) of the posterior gastric wall and infiltrated to the pancreatic capsule were included. However, infiltrations to the serosal surface of the anterior gastric wall were not subjected to the treatment, because of having peritoneal disseminations. Irradiation of 2800-4000 rad of electron beam from betatron was performed after resection of the stomach and the regional lymph node as possible. Five-year survival rate was studied on 58 cases (consisting 5 cases of stage I, 27 cases of stage II, 12 cases of stage III and 14 cases of stage IV). Comparisons were done with the cases receiving surgical operation only. RESULTS: Whatever the stage of the @entity1 was, 3-year survival rate was found to be better in the radiotherapy group than that of the control group (treated surgical resection only). Five year survival rate of the stages III and IV in the radiotherapy group was better than the control group. Unfavorable side effects were observed in 4 cases out of 105 cases. In one case, penetration of postoperative peptic ulcer into the irradiated aortic wall was found by autopsy. Two cases of @entity1157 and one case of ileus due to acutely developed @entity298 were experienced. In conclusion, intraoperative radiotherapy immediately after surgical resection for the treatment of @entity356 was found to be an effective method. The most effective application of the method appears to be to cases of stage II and III without liver @entity3 and peritoneal disseminations (H0P0, M, A).
