Close surveillance imaging is unnecessary for patients with grade I blunt thoracic aortic injury

Am J Surg. 2022 Nov;224(5):1324-1328. doi: 10.1016/j.amjsurg.2022.06.007. Epub 2022 Jun 9.

Abstract

Background: No evidence-based recommendations exist for imaging surveillance of grade I blunt thoracic aortic injuries (BTAI). We aimed to evaluate the natural history of these injuries to provide guidance for follow-up imaging.

Methods: Patients that presented to our trauma center from 2008 to 2021 with grade I BTAI were retrospectively evaluated. CT angiography images were assessed for initial injury grade and subsequent stability, improvement, worsening, or resolution.

Results: Of 83 patients who had grade I injuries and repeat imaging, 57.8% had complete resolution, 20.5% had improvement, and 18.1% had stability of their injury. Only seven patients (8.4%) demonstrated worsening of their injury. Six patients had eventual resolution and one underwent endovascular repair that would not have been performed under current practice patterns.

Conclusions: Since grade I injuries do not worsen to require later surgical intervention, early surveillance imaging is not necessary and further imaging may not be necessary at all.

Keywords: Blunt thoracic aortic injury; CT angiography; Surveillance imaging.

MeSH terms

  • Aorta, Thoracic / diagnostic imaging
  • Aorta, Thoracic / injuries
  • Aorta, Thoracic / surgery
  • Endovascular Procedures* / methods
  • Humans
  • Injury Severity Score
  • Retrospective Studies
  • Thoracic Injuries* / diagnostic imaging
  • Thoracic Injuries* / surgery
  • Time Factors
  • Treatment Outcome
  • Vascular System Injuries* / diagnostic imaging
  • Vascular System Injuries* / surgery
  • Wounds, Nonpenetrating* / diagnostic imaging
  • Wounds, Nonpenetrating* / surgery