根据作者的经验,采用冷冻手术为姑息疗法,效果不佳,限用于有选择的病人,作为早期治疗,希能达到治愈目的。对一些口腔小及中等的肿瘤,可作为开始的治疗,但多试用于经放疗或手术治疗,或二者联合治疗后,肿瘤复发的救治。本篇报告以后者为主。方法用全麻进行,经气管切开术及气管内插管进行,充分暴露后,用电灼、刮匙等除去较大的肿瘤,彻底止血。在拟破坏的组织处插一或几个热偶针,相距约0.5厘米,务使全肿瘤及附近组织至少达到-20℃。可用液氮冻头置于肿瘤处,维持5分钟。每次手术应冷冻肿瘤的一部分,至少分二次治疗。每次冷冻后,可用温生理盐水冲洗,以加速融化。 According to the author’s experience, the use of cryosurgery as a palliative treatment is not effective and is limited to selected patients. As an early treatment, healing can be achieved. For some small and medium-sized oral tumors, it can be used as the initial treatment, but more trials for the treatment of radiotherapy or surgery, or a combination of the two, the treatment of tumor recurrence. This report is mainly based on the latter. The method was performed with general anesthesia, tracheotomy and endotracheal intubation. After full exposure, large tumors were removed with electrocautery and curettes to completely stop bleeding. Insert one or several thermocouple needles at a distance of approximately 0.5 cm between the tissue to be destroyed, so that the entire tumor and nearby tissues reach at least -20°C. Freezing liquid nitrogen can be placed on the tumor for 5 minutes. Each surgery should be frozen part of the tumor, at least divided into two treatments. After each freezing, it can be rinsed with warm saline to accelerate the melting.