[Thoracic aneurysms: criteria for surgical indications and results].

Elective operations of chronic thoracic aortic aneurysms (TAA) can be performed with low risk. In contrast, emergency repair of TAA in symptomatic patients including those with rupture is associated with a high mortality. The worst results were obtained (a) in patients who were in shock preoperatively, (b) with palliative procedures during acute dissection and (c) in patients older than 70. The results may be improved by early diagnosis and better operative technique and perioperative management.