Pathologic Changes of the Trachea
نویسندگان
چکیده
The tracheas of 12 patients who had undergone autopsies after percutaneous dilatational tracheot¬ omy (PDT) were analyzed macroscopically and microscopically. The puncture site of the trachea varied from just below the cricoid cartilage (two patients) to below the third ring (three patients). A fracture of one or more tracheal rings was present in 11 patients, ofwhom 2 had a fractured cri¬ coid. Destruction ofone or more tracheal rings was present in all eight patients cannulated for more than 10 days and was related to duration of cannulation (p<0.005). Protrusion of the anterior wall into the tracheal lumen with tracheal stenosis was seen in two patients. Improvements to the PDT technique are discussed to avoid complications. (CHEST 1996; 109:1466-69)
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