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New Technology

Endovascular Repair of the Descending Aorta and the Aortic Arch With the Relay Stent Graft

^a Cardiovascular and Interventional Radiology, Medical University of Vienna, Vienna, Austria
^b Department of Cardiothoracic Surgery, Medical University of Vienna, Vienna, Austria

Accepted for publication December 18, 2008.

^_* Address correspondence to Dr Funovics, Cardiovascular and Interventional Radiology, Medical University of Vienna, Wahringer Gurtel 18-20, Vienna, 1090, Austria (Email: martin.funovics{at}meduniwien.ac.at).

Purpose: The aim of this study was to evaluate the efficacy and safety of thoracic endovascular aortic repair with a newly designed Relay thoracic stent graft (Bolton Medical, Sunrise, FL).

Description: Between 2005 and 2007, 22 patients (71.8 ± 8.5) received 24 stent grafts. Indications were aneurysms (n = 13), penetrating atherosclerotic ulcers (n = 7), and dissections (n = 2). Due to the proximity of the lesions to the aortic arch, rerouting procedures (ie, subclavian transposition [n = 1], double transposition [n = 12], and total arch rerouting [n = 6] were performed pre-interventionally; three patients did not undergo rerouting). All patients were followed-up with a computed tomographic scan of the entire aorta at discharge, 3 months, 6 months, and annually thereafter (mean follow-up, 13 months).

Evaluation: Primary technical success was obtained in 20 of 22 patients, with one persisting type I endoleak and one asymptomatic type II endoleak. One patient died due to malignant arrhythmia 3 days after stent-graft placement. During follow-up, 1 nonaortic related death was observed. No additional endoleaks were observed. Finally, all supra-aortic rerouting procedures remained patent.

Conclusions: In the treatment of degenerative disease of the descending aorta and the aortic arch, the Bolton Relay stent graft offers acceptable efficacy and safety in short-term follow-up.

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