在1985年5月～1988年12月Cantonal医院耳鼻咽喉-头颈外科对20名腭部肿瘤病人以CO_2激光系统连接手术显微镜实施21次手术。大多数手术在鼻气管插管全麻下进行。首先以CO_2激光束在距显微镜所见肿瘤周界5～10mm标出切除线,用夹持钳将肿瘤标本边缘抓住、绷紧,随后在健康组织边缘逐步切除肿瘤。对直径超过0.5mm的较大血管,偶用双极钳凝结。 From May 1985 to December 1988, Otolaryngology-Head and Neck Surgery at Cantonal Hospital performed 20 operations on 20 patients with orbital tumors using a CO 2 laser system connected to a surgical microscope. Most surgeries are performed under general anesthesia with nasal endotracheal intubation. Firstly, the CO2 laser beam was used to mark the resection line 5 to 10mm away from the tumor perimeter. The edge of the tumor specimen was grasped and tightened with clamping clamps. Then the tumor was gradually removed at the edge of the healthy tissue. For larger vessels with a diameter of more than 0.5 mm, coagulation with bipolar forceps is occasionally used.