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tracheotomy
Tracheotomy ( ) is a surgical procedure which consists of making an incision on the anterior aspect of the neck and opening a direct airway through an incision in the trachea (windpipe). The resulting stoma (hole), or tracheostomy, can serve independently as an airway or as a site for a tracheostomy tube to be inserted; this tube allows a person to breathe without the use of his or her nose or mouth. Both surgical and percutaneous techniques are widely used in current surgical practice. It is among the oldest described procedures.
==Etymology and terminology==
The etymology of the word ''tracheotomy'' comes from two Greek words: the root ''tom-'' (from Greek τομή) meaning "to cut", and the word ''trachea'' (Greek τραχεία). The word ''tracheostomy'', including the root ''stom-'' (from Greek στόμα) meaning "mouth," refers to the making of a semi-permanent or permanent opening, and to the opening itself. Some sources offer different definitions of the above terms. Part of the ambiguity is due to the uncertainty of the intended permanence of the stoma at the time it is created.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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