Abstract

ObjectiveTo evaluate the early outcomes of retrograde in situ branched stent grafting (RIBS) using the gutter balloon technique for complex aortic arch aneurysms (CAAs). MethodsThe RIBS technique is an in situ needle fenestration procedure during thoracic endovascular aortic repair with the reconstruction of cervical branches. The double RIBS (D-RIBS) for the reconstruction of the left common carotid artery and the brachiocephalic artery using the gutter balloon technique was performed in 30 high-risk patients. We describe the early clinical results of the D-RIBS technique for CAAs. Primary end points were technical success and 30-day mortality. Secondary end points were postoperative complications, rates of endoleaks, overall survival, aneurysm-related death, and reinterventions. ResultsThe mean age was 77.1 ± 6.6 years, and the mean maximum minor-axis aneurysmal diameter was 65.9 ± 8.9 mm. Twenty-six patients underwent D-RIBS for elective arch aortic aneurysm, and four patients were for reintervention after zone 2 thoracic endovascular aortic repair failure. Stent graft puncture was performed 60 times from the common carotid arteries, and technical success was achieved in all cases (100%). Postoperative complications included cerebral infarction in two patients (6.7%) and recurrent nerve palsy in one patient (3.3%). The 30-day mortality was 0%. During the median follow-up period of 14 months (6-56 months), overall survival at 12 months was 92.3% without any aneurysm-related death. Type 1 b and type 2 endoleaks were observed in one each, and no reintervention was encountered. ConclusionsEarly clinical outcomes of the D-RIBS for high-risk patients with CAAs are acceptable. The gutter balloon method enables safe and reliable fenestration. Further studies and dedicated devices are warranted.

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