Clinical outcomes of the Seal® thoracic stent graft for traumatic aortic injury in a Korean multicenter retrospective study.

Han Myun Kim,Y. Cho,Jeong Ho Kim,T. Seo,Myung Gyu Song,Y. Jeon,S. Cho,Nam Yeul Im

Published 2019 in Annals of Vascular Surgery

ABSTRACT

BACKGROUND Thoracic endovascular aneurysm repair (TEVAR) has been used as a primary treatment for blunt traumatic aortic injury (TAI). However, the outcomes of mid-term surveillance of Seal® stent-graft durability for TAI have not been extensively studied. Thus, we aimed to report the mid-term outcomes of thoracic endovascular aortic repair (TEVAR) using the Seal® stent-graft for blunt TAI. METHODS Patients with blunt TAI treated with TEVAR using the Seal® thoracic stent-graft between 2007 and 2013 in Korea were included. Mid-term outcomes included technical/clinical success, in-hospital death, aorta/procedure/device-related adverse events, secondary procedures, and 30-day and all-cause mortality. RESULTS A total of 99 patients (54% men; mean age, 48 years) were included. Grade III or higher injuries were present in 95% of patients, including 15 free ruptures of the thoracic aorta, and 64% of injuries were located in zone III. The median procedure and hospitalization duration were 90 min and 11 days, respectively. The technical success rate was 98%. The number of in-hospital mortalities (n = 8) and stroke (n = 2) were observed at 30 days. Late stroke and paraplegia (>30 days) were not observed during the mean 49 ± 26 months of follow-up (median, 48 months; range, 0-117 months). There were no aorta-related mortalities or conversions to open repair. Secondary procedures were performed in 8 patients, all of which were carotid-subclavian bypasses for delayed left subclavian occlusion. The all-cause mortality rate was 5% at 30 days and 8% at 1 year. The survival rate was 95% at 30 days, 92% at 1 year, 92% at 3 years, and 89% at 5 years. One type Ia endoleak occurred at 18 months after the procedure. CONCLUSION TEVAR with the Seal® stent-graft for TAI showed favorable mid-term outcomes. The incidence of major adverse events after the procedure was low.

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