Tracheostomy

 Tracheostomy:
  • It is an operation in which the trachea is opened and a tube inserted into it to facilitate breathing. 
  • It is most commonly done in the retro thyroid region after retracting the isthmus of the the thyroid gland.
  •  A supra thyroid tracheostomy is liable to stricture, and an infra thyroid one is difficult due to the depth of the trachea and is also dangerous because numerous vessels lie anterior to the trachea here 


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