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Eur J Cardiothorac Surg 2004;26:608-613
© 2004 Elsevier Science NL

Secondary surgical interventions after endovascular stent-grafting of the thoracic aorta

^a Department of Cardio-Thoracic Surgery, University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria
^b Department of Interventional Radiology and Angiography, University of Vienna, Waehringer Guertel 18-20, A-1090 Vienna, Austria

Received 3 December 2003; received in revised form 29 April 2004; accepted 4 May 2004.

^* Corresponding author. Tel.: +43-1-40400-5620; fax: +43-1-40400-5640
e-mail: martin.grabenwoeger{at}univie.ac.at

Objective: The objective of the study was to evaluate mid-term durability and need for reinterventions after endovascular stent-grafting (ESG) in descending aortic aneurysms and dissections. Patients and Methods: Between November 1996 and February 2003 a total of 80 patients underwent ESG for the following indications: atherosclerotic aneurysms (50/80; 63%), type B dissections (20/80; 25%), penetrating ulcers (6/80; 8%), traumatic aneurysms (4/80; 5%). Two types of commercially available ESG (Talent, Medtronic, Santa Rosa, CA and Excluder, WL GORE, Flagstaff, AZ) were inserted via the femoral artery in 53 patients, via the iliac artery in 21 patients and via the abdominal aorta in 6 patients. Results: In-hospital mortality was 3.8% (n=3). Type I endoleak formation requiring endovascular reintervention was observed in 3.8% (n=3). Surgical reintervention became necessary in 4 patients (4/80; 5%). One patient experienced a retrograde type A dissection, detected in the 3 month control after ESG of an acute type B dissection, consecutively undergoing frozen elephant trunc repair. Three patients with late type I endoleak formation (mean interval: 62 months) after ESG (two atherosclerotic aneurysms, one penetrating ulcer) underwent open thoraco-abdominal repair in deep hypothermia or left heart bypass technique. All patients had an uneventful postoperative course. Conclusions: Occurrence of late endoleak formation requiring surgical reintervention after ESG is acceptably low. In atherosclerotic aneurysms the development of endoleaks is assumed to be causative related to progression of the underlying aortic disease. A close follow-up of patients after ESG is crucial.

Key Words: Endovascular stent-graft • Endoleak • Surgical repair

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