Interventional procedures.

EC: electrocautery. AP: Aspiration pneumonia. SS: septic shock. T: Tracheal. B: Bronchial. DS: Dumont stent. YDS: Y Dumont stent. W.: weeks. RT: Radiotherapy. §The number of stents exceeded the number of cases as some patients had multiple stents insertion. *With ARF (acute respiratory failure) at admission. †Double fistula of the middle trachea (not related to esophageal stent) and carina. The carina and the 2 main bronchi were destroyed by the esophageal stent. Malignant infiltration was observed. Left bronchus was totally obstructed.