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为了确定高频通气对气管的损害,本文作者对接受10小时以上高频喷射通气(HFJV)或普通机械通气(CMV)后死亡的16例(各8例)患儿进行了气管、隆凸和左右主支气管4个部位的病理组织学检查(用常规方法进行标本的固定、染色),并进行了对比。HFJV 所用的呼吸机是 VS 600喷射呼吸机(频率250～400次/分,吸呼气时间比是1∶2.3)和 Bunnell 救生牌脉冲喷射呼吸机(频率400～600次/分,吸呼气时间比是1∶4到1∶6)。吸入的氧浓度、峰吸气压和呼
To determine the damage to the trachea caused by HF, the authors performed tracheal, protuberant, and maxillofacial surgery in 16 children (8 in each) who died after HFIV or general mechanical ventilation (CMV) for 10 hours or more Left and right main bronchial histopathological examination of 4 parts (using conventional methods of specimen fixation, staining), and compared. The ventilator used in the HFJV is a VS 600 jet ventilator (frequency 250 to 400 beats / min, time to breath ratio 1: 2.3) and a Bunnell life-saving pulse jet ventilator (frequency 400 to 600 beats / min, Time ratio is 1: 4 to 1: 6). Inhalation of oxygen concentration, peak inspiratory pressure and call