Silicone stent has good histocompatibility, but its implantation and extraction are performed under general anesthesia through tracheoscope, possibly inducing secretion retaining.

• 硅酮支架具有良好的组织相容性，但其置入和取出需在全麻下通过硬质气道镜进行，过程较复杂，易导致分泌物潴留。