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喉内创伤的长期结果是环状软骨发育明显障碍,喉内软组织由于疤痕形成和软骨异位而明显增厚,导致气道狭窄不能代偿。创伤的另一个问题是环状软骨环的中断,可能从下述三方面引起。(1)创伤性插管后,部分环状软骨完全坏死;(2)外喉创伤致环状软骨骨折,据报告,环状软骨弓是易于骨折的;(3)手术:高位气管切开术错误地损伤环状软骨或将环状软骨从前正中劈开。鉴于中断环状软骨环在临床上所引起声门下气道腔的结果有明显的分
Long-term consequences of traumatic laryngeal injury is a significant obstacle to the development of annular cartilage, laryngeal soft tissue due to scarring and cartilage ectopic and significantly thickening, resulting in airway stenosis can not be compensated. Another problem with trauma is the disruption of the ring of the cricoid cartilage, which may arise from the following three aspects. (1) complete necrosis of some of the ring-shaped cartilage after traumatic intubation; (2) annular cartilage fracture caused by an external laryngotracheal injury, which is reported as being prone to fracture; (3) surgery: high-level tracheotomy erroneously damages the cricoid cartilage or Cyclic cartilage split from the center. In view of the interruption of the annular cartilage ring clinically caused by subglottic airway results have obvious points