自1961年Cooper提倡用冷冻治疗以来,国内在耳鼻咽喉科的应用已有较多报导。我科于1974年应用液氮冷冻治疗耳鼻咽喉病的效果满意。今将随访的1,134例临床观察报导如下。一、冷冻方法我科应用的是自制手持式简易液氮冷刀,温度可达—112℃左右。在冷冻前,用1%地卡因表面麻醉,若病变位于鼻腔,在粘膜表面麻醉的同时,应以3%麻黄素收敛鼻腔。借以扩大视野,减少冷冻时的损伤。皮肤病变,可直 Since 1961, Cooper advocated the use of cryotherapy since the domestic application of otolaryngology has been more reported. Our department in 1974 with liquid nitrogen cryotherapy for the treatment of otolaryngology is satisfied. The follow-up of 1,134 cases of clinical observation reported below. First, the freezing method Our department is using homemade hand-held liquid nitrogen cold knife, the temperature up to -112 ℃ or so. Before freezing, topical anesthesia with 1% tetracaine, if the lesion is located in the nasal cavity, mucosal surface anesthesia at the same time, should be 3% ephedrine convergence nasal cavity. In order to expand their horizons and reduce the damage when frozen. Skin lesions can be straight