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J Thorac Cardiovasc Surg 2008;136:1289-1294
© 2008 The American Association for Thoracic Surgery

Evolving Technology

Secondary surgical procedures after endovascular stent grafting of the thoracic aorta: Successful approaches to a challenging clinical problem

^a Department of Cardiac Surgery, Leipzig Heart Center, Leipzig, Germany
^b Department of Angiology, Leipzig Heart Center, Leipzig, Germany

Received for publication January 20, 2008; revisions received April 7, 2008; accepted for publication May 19, 2008.

^_* Address for reprints: Evaldas Girdauskas, MD, Leipzig Heart Center, Struempellstrasse 39, 04289 Leipzig, Germany. (Email: evagird{at}centras.lt).

Objective: To evaluate the results of open surgical repair for complications after endovascular thoracic aorta stenting.

Methods: A total of 14 patients (8 male, mean age 59.8 ± 14.8 years) underwent conventional surgical therapy at our institution over a 5-year period after previous thoracic aortic stent implantation. The indications for surgery, intraoperative strategy, and perioperative and follow-up results were analyzed.

Results: The indication for stent implantation was type B aortic dissection in 10 patients, expanding degenerative thoracic aneurysm in 3 patients, and pseudoaneurysm in 1 patient. The median interval to conventional surgery after stent implantation was 4.5 months (range 0.1–49 months). The indication for surgery was persistent type I endoleak with progressive aneurysm enlargement in 7 patients, aortoesophageal fistula in 2 patients, retrograde type A dissection in 2 patients, infection of the endoprosthesis in 2 patients, and aortic valve insufficiency caused by perforation of noncoronary and right coronary cusps in 1 patient. The endograft had to be removed in 9 (64%) patients, and 5 (36%) patients required replacement of the thoracoabdominal aorta. In-hospital mortality was 7% (1 patient). No patients had a postoperative stroke or paraparesis. Eleven (79%) patients are alive after a mean follow-up of 13.5 ± 10.1 months (range 1–36 months).

Conclusions: Secondary surgical procedures after stenting of the thoracic aorta can be performed with very good results, despite the challenging clinical scenarios. Identification of successful surgical strategies for this difficult clinical problem is important in the era of increasing endovascular therapy.

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