• Burkhart Zipfel, Martin Czerny, Martin Funovics, Gioacchino Coppi, Carlo Ferro, Hervé Rousseau, Sergio Berti, Domenico G Tealdi, Vincent Riambau, Nicola Mangialardi, Carlo Sassi, and RESTORE Investigators.
• Deutsches Herzzentrum Berlin, Germany.
• J. Endovasc. Ther. 2011 Apr 1; 18 (2): 131-43.

PurposeTo evaluate the safety and performance of Relay stent-grafts in patients with acute or chronic aortic dissections.MethodsPatients with types A or B aortic dissections suitable for treatment with Relay stent-grafts and followed for 2 years after thoracic endovascular aortic repair (TEVAR) were identified from a company-sponsored registry database established in January 2006. Ninety-one consecutive patients (69 men; mean age 65 years) underwent TEVAR with Relay stent-grafts for dissection. Most patients (76, 84%) had type B dissections; 61 of all patients were classified as chronic and 30 as acute.ResultsThe technical success rate was 95% (97% in acute, 95% in chronic, and 93% in type B dissections). The type I endoleak rate was 7% (7% in acute and 8% in chronic dissections); all occurred in patients with type B dissections. Paraplegia, paraparesis, and stroke occurred in 4, 1, and 2 patients, respectively; 2 cases of paraplegia occurred in patients with acute type B dissections. Thirty-day mortality was 8% (13% in acute and 5% in chronic dissections); all deaths occurred in patients with type B dissections. The 2-year survival rate was 82% in the overall population and 84% in patients with type B dissections.ConclusionThe combination of Relay's features, such as stent conformability, radial force, atraumatic design, and controlled deployment and fixation, may contribute to the safety of the Relay stent-grafts for the treatment of thoracic aortic dissections, including acute and chronic type B dissections.

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