[The dynamic trachea stent for treatment of benign and malignant tracheal obstruction].

Severe obstruction of the trachea is a life-threatening condition. In two patients with a benign cause of obstruction, women of 70 and 71 years old, and in one with a malignant cause, a man of 24 years old, insertion of a dynamic trachea stent led to instant relief of symptoms. The dynamic stent has the advantage over rigid or self-expanding stents that it does not migrate but may be easily removed, that it induces less granulation tissue, and that less mucus retention is seen, because it allows the normal cough mechanism to take place.