• Iris B Charcos, Tina W Wong, Brett R Larsen, Adrienne R Azurdia, Daniel G Gridley, Sydney J Vail, Alexzandra K Hollingworth, Salvatore C Lettieri, and Iman Feiz-Erfan.
• Department of Surgery, Division of Neurosurgery, Creighton University, School of Medicine Phoenix, Phoenix, Arizona, USA; Valleywise Health Medical Center, Phoenix, Arizona, USA.
• World Neurosurg. 2021 Aug 1; 152: e138-e143.

BackgroundEpidural hematoma (EDH) can result in a catastrophic outcome of traumatic brain injury. Current management guidelines do not consider the source of hemorrhage in decision making. The purpose of this study was to examine the relationship between EDH location and the source of hemorrhage.MethodsWe report retrospectively reviewed, prospectively obtained surgical data of patients with acute traumatic cranial EDH treated between 2007 and 2018. Computed tomography (CT) scans were used to categorize EDH location as lateral or medial. The source of hemorrhage was identified intraoperatively by a single surgeon.ResultsOverall, of 92 evacuated EDHs (in 87 patients), 71 (77.2%) were in the lateral location. Arterial bleeding was the cause of EDH in 63.4% of the lateral EDHs and 9.2% of the medial EDHs (P < 0.0001). In the cases where surgery was done primarily to treat EDH, 65.3% had an arterial bleed source (P < 0.0001). In those treated for primary reasons other than EDH evacuation, 75% had a venous bleed source (P = 0.002).ConclusionsThe location of EDH correlates with the source of hemorrhage. The decision to operate on EDH may be influenced by this factor.Copyright © 2021 Elsevier Inc. All rights reserved.

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