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对不宜用常规疗法处理的气管支气管树恶性肿瘤所致的呼吸道狭窄,作者报告了一种新疗法——支气管镜冷冻疗法,该疗法所用的器械有硬质支气管镜和由镜内通过的冷冻探针.探针长55cm,外径3 mm,易于弯曲,尖端可替换.整个探针除尖端1 cm 外均被绝缘。冷冻剂选用氧化亚氮.以阻抗测量法控制冷冻温度.治疗时,在同一部位冷冻持续1分钟.作者用该疗法对1984年3至12月间27例病人进行
For airway stenosis caused by tracheobronchial malignancies that are not suitable for conventional therapy, the authors reported a new treatment, bronchoscopic cryotherapy, which uses hard bronchoscopes and cryoprobes that are passed through the lens. Needle. The probe is 55cm in length and 3mm in outside diameter. It is easy to bend and the tip can be replaced. The entire probe is insulated except for the tip 1cm. Nitrous oxide was selected as the refrigerant and the freezing temperature was controlled by impedance measurement. During the treatment, the same site was frozen for 1 minute. The authors used this therapy to treat 27 patients from March to December 1984.