CLINICAL APPLICATION OF THE YAG LASER—THE SECOND REPORT—

Abstract

The YAG laser (MBB Co., West Germany) was used for treatment of protruded ealry gastric cancers, gastric polyps and phytobezoar as clinical application in addition to ordinary use as photocoagulator. In protruded early cancer of the stomach, 2 cases of I type and one case of IIa-type were treated with the YAG laser resulting in eradicating the lesions . The clinical course of these patients was uvenentf ul and no recurrences of the lesions have been observed. For protruded early cancer of the stomach in patients to whom surgical treatment is contraindicated, the YAG laser treatment is available on the basis of its safety and simplicity. The YAG laser treatment was done in 3 cases of gastric polyps of Type II according to Yamada's classification and proved difficult to use an electric sector. one procedure of the treatment was sufficient to eradicate a lesion in these cases. YAG laser treatment is available for cases in which hemorrage and perforation might be caused by polypectomy. YAG laser treatment was attempted in a case of phytobezor. This treatment will be applied as one of the non-surgical treatments for phytobezoar in the future although investigation in more cases is needed.