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由于气管切开技术和塑料气管套管的发展,婴儿气管切开术后大多数已不存在拔管问题,只有少数病人在拔管后仍不能呼吸,但无明显原因,这种非机械性阻塞,约占11-48%,1969-1970年作者遇到33例气管切开拔管的婴儿,其中3例虽无机械性梗阻,但拔管困难,占9%。从理论上解释拔管困难的意见尚不统一。一般认为可能由于气管切开后没有气流的刺激而影响了喉部发育;拔管时经受不住气道增加的阻力;气流经过声门的“异物反应”和精神因素
Due to the development of tracheostomy and plastic tracheal tube, most of the tracheotomy patients have no extubation problems. Only a few patients can not breathe after extubation, but for no apparent reason, such non-mechanical obstruction , Accounting for 11 - 48%. Between 1969 and 1970, the authors encountered 33 cases of tracheotomy extubation. Three of them had no mechanical obstruction, but extubation was difficult, accounting for 9%. Opinions on explaining extubation difficulties are not uniform. It is generally believed that laryngeal development may be affected by the absence of airflow stimulation after tracheotomy; resistance to increased airway extubation during extubation; airflow through the glottis “foreign body reaction” and mental factors