The resultsindicated that mucous secretory cells is not the end-stage cell . the ability to synthesize DNA and re-generate, but one of main cells of repairing tracheal epithelium after injury.
The formation of saber sheath trachea is caused by the injury of the tracheal cartilage due to chronic coughing, resulting in remodeling and dystrophic ossification of the cartilage.
剑鞘气管的形成是由于慢性咳嗽所致气管软骨环的损伤、重塑型和营养不良性骨化。
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ConclusionAfter brain injury, the use of oxygen inhalation, nasal feeding, suction, tracheal intubation, tracheotomy, breathing machine were the main risky factors to cause lung infection.