Tracheostomy is to establish an artificial airway by making an opening at anterior tracheal wall.Due to the blossom of mechanical ventilation and intensive care unit after 1950 s,tracheostomy is the most favorable surgical method to access airway at present.In addition to traditional surgical tracheostomy,percutaneous dilational tracheostomy have gained increasing popularity and become an alternative procedure because of its merits such as easier manipulation,shorter operative duration and less complication...
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