• Eur J Trauma Emerg Surg · Dec 2022

    Review

    Left subclavian artery coverage during endovascular repair of thoracic aorta injury in trauma and non-trauma patients.

    • Areg Grigorian, Meghan Lewis, Jordan R Wlodarczyk, Chih Ying Chien, Timothy Park, and Demetrios Demetriades.
    • Division of Trauma and Surgical Critical Care, University of Southern California, 2051 Marengo Street, Los Angeles, CA, 90033, USA. areg.grigorian@med.usc.edu.
    • Eur J Trauma Emerg Surg. 2022 Dec 1; 48 (6): 442544294425-4429.

    PurposeIn thoracic endovascular aortic repair (TEVAR), the left subclavian artery (LSA) is often occluded. Although most patients tolerate this, some develop ischemic symptoms to the brain or left upper extremity (LUE). A revascularization procedure may be associated with significant complications. The purpose of this review was to assess the incidence of LSA occlusion, resulting ischemic symptoms, and complications related to revascularization operations in trauma patients compared to non-trauma patients.MethodsStudies from 2010 to 2020 were fully reviewed if they discussed incidence of LSA coverage, LUE ischemia, carotid-subclavian bypass, or complications associated with carotid-subclavian bypass.ResultsSeventeen articles were included in this analysis. A total of 167 patients were identified as trauma cases. Incidence of LSA occlusion in trauma was 91/167 (54%) compared to 281/1446 (19%) in the population exclusive of trauma (p < 0.001). Following LSA occlusion, the rate of LUE claudication/ischemia was 21/56 (38%) for trauma, compared to 12/193 (6%) in non-trauma cases (p < 0.001). The overall complication rate after carotid-subclavian rescue bypass was 29.2% (33/112), with phrenic nerve palsy (24%), recurrent laryngeal nerve palsy (5%), and pseudoaneurysm (1.7%) being the most common.ConclusionLSA coverage following TEVAR is common and associated with significant complications, often requiring operative management. The incidence of ischemic complications after occlusion of the LSA is significantly higher in the trauma population. Revascularization procedures to correct the occlusion have a high rate of complications.© 2022. The Author(s), under exclusive licence to Springer-Verlag GmbH Germany.

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