Coverage of the Left Subclavian Artery in Blunt Thoracic Aortic Injury Repair Is Rarely Indicated

Thoracic endovascular repair has become the standard treatment for blunt thoracic aortic injury (BTAI). Occlusion of the left subclavian artery (LSA) is generally required for an adequate landing zone (ALZ). We propose that coverage of the LSA is not necessary for BTAI even with a short landing zone...

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Veröffentlicht in:Annals of vascular surgery 2022-11, Vol.87, p.461-468
Hauptverfasser: Kritayakirana, Kritaya, Uthaipaisanwong, Apinan, Narueponjirakul, Natawat, Aimsupanimitr, Punthita, Kittayarak, Chanapong, Yu, Jakraphan
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container_title Annals of vascular surgery
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creator Kritayakirana, Kritaya
Uthaipaisanwong, Apinan
Narueponjirakul, Natawat
Aimsupanimitr, Punthita
Kittayarak, Chanapong
Yu, Jakraphan
description Thoracic endovascular repair has become the standard treatment for blunt thoracic aortic injury (BTAI). Occlusion of the left subclavian artery (LSA) is generally required for an adequate landing zone (ALZ). We propose that coverage of the LSA is not necessary for BTAI even with a short landing zone (SLZ). Retrospective review of BTAI patients, who were treated from January 2008 to December 2020, was analyzed. BTAI was categorized into 2 cohorts, SLZ 20 mm. Demographic data, trauma scores, grade of BTAI, procedure-related data, and clinical outcomes were analyzed. t-Test and chi-squared tests were used for statistical analysis. Thoracic endovascular repair was performed in 59 BTAI patients (mean age of 38.9 ± 14 years, mean Injury Severity Score of 40.4 ± 9.3). Two cohorts were identified: 49 patients had an SLZ, and 10 patients had an ALZ (14 ± 3.1 mm vs. 25 ± 4.1 mm, P = 0.03). The procedures were performed successfully with 59 patients (86.4%) deploying in zone 3. In-hospital mortality (SLZ group: 4.1% vs. ALZ group: 0, P = 0.318), endoleak (SLZ group: 4.1% vs. ALZ group: 20%, P = 0.45), stroke (SLZ group: 0 vs. ALZ group: 0, P = 1), spinal cord ischemia (SLZ group: 2% vs. ALZ group: 0, P = 1), left arm ischemia (SLZ group: 0 vs. ALZ group: 0, P =1), and reintervention rate (SLZ group: 0 vs. ALZ group: 0, P = 1) were not statistically different between cohorts. BTAI repair with an SLZ can be treated successfully without covering the LSA, analyzing technical success and in-hospital complications. Mid- and long-term data are necessary to confirm the durability of this technique.
doi_str_mv 10.1016/j.avsg.2022.05.019
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Occlusion of the left subclavian artery (LSA) is generally required for an adequate landing zone (ALZ). We propose that coverage of the LSA is not necessary for BTAI even with a short landing zone (SLZ). Retrospective review of BTAI patients, who were treated from January 2008 to December 2020, was analyzed. BTAI was categorized into 2 cohorts, SLZ &lt;20 mm and ALZ &gt;20 mm. Demographic data, trauma scores, grade of BTAI, procedure-related data, and clinical outcomes were analyzed. t-Test and chi-squared tests were used for statistical analysis. Thoracic endovascular repair was performed in 59 BTAI patients (mean age of 38.9 ± 14 years, mean Injury Severity Score of 40.4 ± 9.3). Two cohorts were identified: 49 patients had an SLZ, and 10 patients had an ALZ (14 ± 3.1 mm vs. 25 ± 4.1 mm, P = 0.03). The procedures were performed successfully with 59 patients (86.4%) deploying in zone 3. In-hospital mortality (SLZ group: 4.1% vs. ALZ group: 0, P = 0.318), endoleak (SLZ group: 4.1% vs. ALZ group: 20%, P = 0.45), stroke (SLZ group: 0 vs. ALZ group: 0, P = 1), spinal cord ischemia (SLZ group: 2% vs. ALZ group: 0, P = 1), left arm ischemia (SLZ group: 0 vs. ALZ group: 0, P =1), and reintervention rate (SLZ group: 0 vs. ALZ group: 0, P = 1) were not statistically different between cohorts. BTAI repair with an SLZ can be treated successfully without covering the LSA, analyzing technical success and in-hospital complications. 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title Coverage of the Left Subclavian Artery in Blunt Thoracic Aortic Injury Repair Is Rarely Indicated
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