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作者评价了用支气管镜冷冻疗法治疗33例晚期支气管癌患者的价值.患者一般接受3次冷冻治疗,第1次与第2次间隔2周,第2次与第3次间隔4周,治疗前后对呼吸困难、咳嗽、喘鸣、咯血、胸片、肺功能(FVC、FEV_1、MEF、MIF)及动脉血气等进行临床评定.冷冻治疗是在全麻下通过硬支气管镜进行,远端支气管的病变部位用支气管冷冻刀尖通过供给循环的液氮氧(-70℃)给予冷冻,同时不断吸引覆盖患处的血液和分泌物,整个过程10～15分钟。33例有阻塞的恶性支气管肿瘤患者,经支气管镜冷冻治疗81次后,绝大多数患者的喘鸣、咯血有改善,呼吸困难好转,58%的肺功能改善,77%的支气管镜证
The authors evaluated the value of bronchoscopic cryotherapy for the treatment of 33 patients with advanced bronchial carcinoma. The patient received three cryosurgical treatments, the first and second intervals of 2 weeks, the second and third intervals of 4 weeks, before and after treatment. Clinical assessment of dyspnea, cough, wheezing, hemoptysis, chest radiographs, pulmonary function (FVC, FEV_1, MEF, MIF), arterial blood gas, etc. Cryotherapy is performed under hardened bronchoscopes under general anesthesia with distal bronchial The lesions were frozen by the circulatory liquid nitrogen nitrogen (-70°C) with a bronchial frozen tip, while continuously attracting blood and secretions covering the affected area for 10 to 15 minutes. Among 33 patients with obstructive malignant bronchial tumors, after bronchoscopic cryosurgery 81 times, most patients had improvement in stridor, hemoptysis, dyspnea, 58% improvement of pulmonary function, and 77% of bronchoscopy.