Abstract
Laser endscopy was applied to treat six cases of gastric cancer, a case of advanced gastric cancer and a case of early esophageal cancer. All cases ware males and two cases revealed type I, three cases type IIa, two cases type IIc and one case Borrmann III morphologically. Operation was not indicated in five cases because of associated diseases such as angina pactoris, liver cirrhosis, cardiac failure and postoperative status of malignancies. The mean age of five cases was 74 years old.Laser irradiation was perfomed with the condition of 50 W/0.5 to 1 second from the distance of 1 cm in principle. This treatment was done for one to three days and the lesion was irradiated 14 to 120 times in each treatment. Three cases were successfully operated after laser therapy. Only the complication experienced was a perforation of the stomach due to direct irradiation to the ulcer although the patient was operated successfully. Five cases have been serially followed up for two to twelve months by the endoscopic biopsy and all have been still pathologically negative.These data suggest that endoscopic YAG laser therapy could he applicable to those patients with early gastric and esophageal cancer who cannot tolerate surgical intervention.
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