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Hybrid Aortic Repair of Dissecting Aortic Arch Aneurysm after Surgical Treatment of Acute Type A Dissection

Hybrid Aortic Repair of Dissecting Aortic Arch Aneurysm after Surgical Treatment of Acute Type A Dissection

Annals of Vascular Surgery 30: 175-180

The aim of this study was to evaluate the short-term and midterm results of hybrid repair of dissecting aortic arch aneurysms subsequent to surgical treatment of acute type A dissections. Between 2003 and 2014, 7 consecutive patients, previously operated for acute type A dissection, underwent hybrid repair of their aortic arch for a dissecting aortic arch aneurysm (6 men, mean age 62 ± 11 years). Aneurysm formation requiring treatment in these aortic arches was observed from 2 to 20 years after the initial aortic dissection repair. A hybrid technique was used in all patients, with supra-aortic debranching through a redo sternotomy and either simultaneous (6 patients) or staged endovascular stent grafting (1 patient). Two patients were treated in an emergent setting (1 ruptured and 1 symptomatic aneurysm). Two patients required a more extensive aortic repair of either the thoracic aorta (n, 1) or of the thoracoabdominal aorta (n, 1). One patient underwent, saphenous vein bypass from the ascending aorta to the anterior descending coronary artery on full cardiopulmonary bypass. Follow-up computed tomography scans were performed at 1 week, 3, and 6 months, and annually thereafter. Technical success was achieved in all the cases. One transient ischemic attack, 1 stroke, and 1 episode of transient spinal cord ischemia were observed. Thirty-day mortality was not observed. A type I endoleak at 6 months was successfully treated with deployment of a second stent graft. After a mean follow-up of 3.5 ± 3.1 years (range, 0.4-9.6 years), no aortic-related mortality was observed. No cases of stent-graft migration or secondary rupture were observed. Our experience demonstrates the promising potential of endovascular repair of dissecting aortic arch aneurysms after surgical treatment of acute type A dissection. The potential to diminish the magnitude of the surgical procedure and the consequences of aortic arch exposure, and above all avoiding the need for circulatory arrest are promising and mandate further investigation to determine the efficacy and durability of this technique.

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Accession: 058020359

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PMID: 26529059

DOI: 10.1016/j.avsg.2015.07.046

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