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为了尽量保留正常肝组织而只破坏病灶,我们对肝脏提出了冷冻手术,非常安全,可以用于肝原发癌、转移癌及破裂出血,效果均好。肝细胞耐冷为-10～-20℃,格利森氏囊为-40～-60℃,完全坏死需达-60℃。肿瘤种类不同对冷的感受性也不同,恶性程度越高耐冷性越差。我们冷冻手术的标准温度为-10℃,冷冻剂是液氮,冷冻器头部温度是-180℃,根据冷冻所要求的范围而要一定时间。
In order to preserve normal liver tissue as much as possible and only destroy the lesion, we proposed cryosurgery on the liver, which is very safe and can be used for primary, metastatic and ruptured hepatic bleeding with good results. Hepatocyte cold tolerance is -10 to -20°C, Gleason’s capsule is -40 to -60°C, and complete necrosis requires -60°C. Different types of tumors have different susceptibility to cold. The higher the degree of malignancy, the worse the cold tolerance. The standard temperature for our cryosurgery is -10°C, the cryogen is liquid nitrogen, and the freezer head temperature is -180°C. It takes a certain time depending on the range required for freezing.