Note: Do not rely on this information. It is very old.
Tracheotomy
Tracheotomy, the operation of opening the trachea (with a view to the insertion of a tube through which the patient can breathe) in cases of obstruction to respiration through the natural passages, is sometimes performed in diphtheria and other forms of disease affecting the larynx, and in instances where pressure is exerted upon the upper air-passages by tumours and the like.