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A tracheotomy is a surgical procedure that creates an opening into the trachea from an incision in the back of the neck for the installation of a breathing tube. This enables the patient to breathe without the use of the nose or mouth, which is useful when the upper respiratory tract is obstructed.
Tracheotomy refers to the surgical procedure and incision of the trachea, whereas the term tracheostomy refers to the physical opening that allows an alternative breathing mechanism.
Tracheotomy has a long history of use with pictorial evidence on ancient Egyptian artifacts from 3000BC and written records at various points in time from 2000BC and more recently.
However, until the early in the twentieth century tracheotomy was widely regarded as futile and was not widely practiced, despite several isolated successful cases. In the early 1900s, Chevalier Jackson created a standardized method of surgery that included appropriate post-operative care, which greatly reduced mortality rates associated with the procedure.
The technique has been further developed since this time and is now more commonly used with the introduction of new technology and significantly reduced risk of complications.
A tracheostomy is a very useful surgical procedure that is used in a number of circumstances. This includes an emergency situation to bypass an obstruction of the upper airway and a planned surgical procedure to clean secretions from the airway or deliver oxygen to the lungs.
Some specific situations that may require a tracheotomy include:
A tracheotomy is usually performed in an operating room of a controlled hospital setting with the patient under general anesthesia.
The most widely used technique usually involves the extension of the neck over a shoulder roll and the endotracheal tube is positioned so that the cuff is level with the middle of the vocal cord.
An incision about 3-4cm in length is made into the inferior border of the cricoid cartilage. The thyroid isthmus should then be pushed down with unobtrusive dissection of the pretracheal tissue. The larynx then needs to be stabilized, a bronchoscopy should be performed and a needle placed at the edge of the light reflex, without touching the posterior tracheal wall.
The needle is then withdrawn but the cannula should remain in the tracheal lumen. A dilator is loaded and used to dilate the tissue between the skin and the tracheal lumen, which prepares the area for the placement of the tracheostomy tube.
Postoperative care is essential to promote the smooth recovery following the procedure and reduce the risk of complications
The modern technique used to perform a tracheotomy is associated with a much lower risk of complication than previously used methods, but some complications may arise. These may include