title: Treatment of head and neck tumors by contact Nd-YAG laser surgery.
abstract: The contact Nd-YAG laser system with ceramic rods which has been developed by us was applied to animal experiments and clinical practice. It was confirmed that: 1) this method can be performed at low power of 6 to 8 W in contact laser incision of soft tissue and at 3 to 4 W in localized laser hyperthermia; 2) it permits accurate and precise incision because mis-shots of laser irradiation can be eliminated in the target tissue; 3) it causes less bleeding with minimal damage to adjacent tissue; and 4) it has remarkably high controllability. The contact Nd-YAG laser systems are very useful as one of the new modalities for surgical procedures as well as localized laser hyperthermia in head and neck tumors.
mesh_terms: D000818:Animals; D000970:Antineoplastic Agents / Q000627:therapeutic use; D003131:Combined Modality Therapy; D006168:Guinea Pigs; D006258:Head and Neck Neoplasms / Q000188:drug therapy / Q000532:radiotherapy / Q000601:surgery* / Q000628:therapy; D006801:Humans; D006979:Hyperthermia, Induced; D007012:Hypopharyngeal Neoplasms / Q000473:pathology; D053685:Laser Therapy; D008084:Lipoxygenase / Q000378:metabolism; D008207:Lymphatic Metastasis; D008297:Male; D051379:Mice; D008875:Middle Aged; D011451:Prostaglandin-Endoperoxide Synthases / Q000378:metabolism; D011817:Rabbits; D014062:Tongue Neoplasms / Q000201:enzymology / Q000601:surgery / Q000628:therapy
chemical_list: D000970:Antineoplastic Agents; D008084:Lipoxygenase; D011451:Prostaglandin-Endoperoxide Synthases