经喉的长期鼻气管插管 (PNTI)是现代复苏和抢救治疗的重要方法 ,可用于任何年龄以取代气管切开术 ,维持气道通畅 ,故自 70年代初以来 ,插管损伤已成为儿童呼吸道瘢痕狭窄病因中的首位 ,对其作用至今仍有争议。粗暴插管会损伤喉及气管粘膜 ,插管过粗或压力太大 ,超过粘膜毛细血 Long-term transthoracic nasal endotracheal intubation (PNTI) is an important method of modern resuscitation and salvage therapy that can be used at any age in place of tracheotomy to maintain airway patency. Since the early 1970s, intubation injury has become a Respiratory scarring causes of the first place, its role is still controversial. Rough intubation can damage the throat and tracheal mucosa, intubation is too thick or too much pressure, more than mucosal capillary