ROENTGENOLOGY OF TRACHEAL STENOSIS RESULTING FROM CUFFED TRACHEOSTOMY TUBES

Abstract
Tracheal stenoses as a result of pressure necrosis from the inflatable balloon of cuffed tracheostomy tubes occur approximatelty 1.5-3 cm. distal to the stomal site. These lesions are best evaluated roentgenologically by a combination of air tracheograms with or without laminagraphy and fluoroscopy. Stenoses appear as narrowed areas in the tracheal lumen with thickened soft tissue walls. Loss of the supporting structures of the tracheal wall results in extreme mobility and collapse of the tracheal lumen with coughing or forced expiration and is optimally demonstrated fluoroscopically. Tracheal resection with end-to-end anastomosis offers definitive treatment for this condition and makes precise roentgenologic evaluation essential.