Multistage Hybrid Treatment of Aortic Aneurysm and Management of Postoperative Complications: A Case Report.

The Frozen Elephant Trunk (FET) is a surgical procedure developed for simultaneous repair of the aortic arch and the proximal descending thoracic aorta. Experience has shown its technical feasibility and good clinical results, although complications remain possible. Case Presentation: A 66-year-old male presented for evaluation due to findings from computed tomography angiography of aneurysms in the ascending aorta, aortic arch, and abdominal aorta. The patient had a history of a quadruple coronary artery bypass graft (CABG) and placement of two stents in the descending thoracic aorta, which were improperly aligned, thrombosed, and further complicated the case. The patient underwent surgery involving sternotomy to perform the FET procedure, replacing the ascending aorta and aortic arch and placing a stent graft in the proximal descending thoracic aorta. Simultaneously, two coronary artery bypass grafts were performed. Postoperatively, the patient was stable, and the intervention outcome was satisfactory. Subsequently, endovascular treatment was carried out on the remaining thoracic aorta and abdominal blood vessels. However, respiratory failure necessitated the placement of stent grafts in the left main bronchus on two occasions. Despite extensive efforts, the patient succumbed to respiratory insufficiency. Conclusion: Timely intervention and a multidisciplinary approach played a key role in addressing complications, although the patient ultimately experienced a fatal outcome due to multiorgan failure.