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本文对22例经内窥镜CO_2激光切除喉、气管及支气管狭窄性病变时应用2 mm内径导管对一侧或双侧肺作高频喷射通气法(H FV)作了评价。病人年龄52～81岁,呼吸功能呈边缘状态,有喘鸣,稍一活动就喘息。术前X线相显示气道狭窄70～90%。根据气道病变部位及通气肺侧数将病人分为二组。第一组10例,为支气管癌、气管隆突癌及肉芽肿等引起的右侧气道远端阻塞性病变。HF V导管借助于探针导入左支气管,并与HFV机连接,作单侧HFV。支气管镜顺导管放至病变上方。在支气管镜放入期间,HFV间歇通气;待支气管镜放定后,改为持续通气。显微激光装置连接在支气管镜上。第二组12例为癌肿、肉芽肿、纤维化、乳头状瘤、气管切开术
In this paper, 22 cases of laryngeal, tracheobronchial and bronchial stenotic lesions under endoscopic C02 laser were evaluated by high-frequency jet ventilation (H FV) using a 2 mm ID catheter on one or both sides of the lung. Patients aged 52 to 81 years old, respiratory function was marginalized, wheezing, wheezing slightly activity. Preoperative X-ray showed airway stenosis of 70 to 90%. The patients were divided into two groups according to the location of airway lesion and the number of ventilated lung. The first group of 10 patients with bronchial carcinoma, bronchial carcinoma and granuloma caused by distal obstruction of the distal airway obstruction. The HF V catheter was introduced into the left bronchus by means of a probe and connected to the HFV machine as a unilateral HFV. Bronchoscopy tube to the top of the lesion. During bronchoscopy, HFV intermittent ventilation; bronchoscopy to be set, to continuous ventilation. Micro-laser device connected to the bronchoscope. The second group of 12 cases were cancer, granuloma, fibrosis, papilloma, tracheotomy