• Margaret McGrath, Kasra Sarhadi, Mark H Harris, Eliza Baird-Daniel, Madeline Greil, Adriel Barrios-Anderson, Ellen Robinson, Christine T Fong, Andrew M Walters, Abhijit V Lele, Sarah Wahlster, and Robert Bonow.
• Department of Neurological Surgery, University of Washington, Seattle, Washington. Electronic address: macmcg@uw.edu.
• World Neurosurg. 2024 May 1; 185: e1114e1120e1114-e1120.

IntroductionPatients with traumatic intracranial hemorrhage (tICH) are at increased risk of venous thromboembolism and may require anticoagulation. We evaluated the utility of surveillance computed tomography (CT) in patients with tICH who required therapeutic anticoagulation.MethodsThis single institution, retrospective study included adult patients with tICH who required anticoagulation within 4 weeks and had a surveillance head CT within 24 hours of reaching therapeutic anticoagulation levels. The primary outcome was hematoma expansion (HE) detected by the surveillance CT. Secondary outcomes included 1) changes in management in patients with HE on the surveillance head CT, 2) HE in the absence of clinical changes, and 3) mortality due to HE. We also compared mortality between patients who did and did not have a surveillance CT.ResultsOf 175 patients, 5 (2.9%) were found to have HE. Most (n = 4, 80%) had changes in management including anticoagulation discontinuation (n = 4), reversal (n = 1), and operative management (n = 1). Two patients developed symptoms or exam changes prior to the head CT. Of the 3 patients (1.7%) without preceding exam changes, each had only very minor HE and did not require operative management. No patient experienced mortality directly attributed to HE. There was no difference in mortality between patients who did and those who did not have a surveillance scan.ConclusionsOur findings suggest that most patients with tICH who are started on anticoagulation could be followed clinically, and providers may reserve CT imaging for patients with changes in exam/symptoms or those who have a poor clinical examination to follow.Copyright © 2024 Elsevier Inc. All rights reserved.

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