Indications for and techniques of tracheotomy.

Although the operation has been practiced for centuries, the modern technique of tracheotomy was introduced and popularized in the beginning of the 20th century. The initial indication for tracheotomy was limited to impending airway obstruction resulting from trauma, but current indications are broader. Tracheotomy is one of four methods available to intubate the trachea and is associated with physiologic changes that are dependent on the duration of tracheotomy. Although surgical in nature, it is employed to relieve or prevent airway obstruction and to offer ventilatory support. Tracheotomy may be performed as an elective or an emergency procedure. Ideally, it is done in a controlled situation. However, when performed in an emergency setting, variations of the procedure, such as minitracheotomy or cricothyroidotomy, may be temporarily substituted. Preferably, tracheotomy is performed in an operating room; however, it may be carried out successfully in an intensive care unit as well.