[Usefulness of Dumon-type endotracheal stent for left main bronchial obstruction caused by thoracic aortic aneurysm--a case report].

We used a Dumon-type endotracheal stent for left main bronchial stenosis occurred after the operation of combined true and Type III dissecant aneurysm. A 65-year-old man with acute Type III dissection with true thoracic aneurysm was operated on by means of arch replacement with thoracic aortic replacement. He complained of dyspnea and the respirator support was not able to discontinued. The cause of dyspnea was oppression of the left main bronchus with remnant thoracic dissecting aneurysm together with a hematoma. A Dumon-type stent was successfully inserted into the left main bronchus under bronchoscopic guide via tracheostomy. It is a choice of conservative therapy after major surgery such as operation of thoracic aneurysm to relieve the bronchial obstruction.