• Ilya Rybkin, Michael Kim, Anubhav Amin, and Michael Tobias.
• New York Medical College, Valhalla, New York, USA. Electronic address: irybkin@nymc.edu.
• World Neurosurg. 2018 Sep 1; 117: 353-356.

BackgroundPrior studies have shown that most patients with mild traumatic brain injury or negative computed tomography (CT) scans of the head rarely decline or require neurosurgical interventions. One common reason for a delayed decline is an intracranial hemorrhage that presents within 24-48 hours. This is typically seen in elderly patients and/or patients on antiplatelet or anticoagulation agents. We describe a case of a delayed subdural hemorrhage presenting in a young adult not on any antiplatelet or anticoagulation therapy.Case DescriptionA 19-year-old male presented to the emergency department after being involved in a motor vehicle accident. He had a Glasgow Coma Scale of 15, and an initial CT was negative for any intracranial hemorrhage or pathology, so he was then admitted to the intensive care unit for further care. The patient received 1 dose of aspirin 325 mg the following day for treatment of blunt cerebrovascular injury. Six hours later he reported a severe headache and had an episode of emesis with a subsequent rapid neurologic decline. Repeat CT showed an acute right subdural hematoma, and he underwent an emergent right decompressive hemicraniectomy.ConclusionsIn rare cases, patients with negative initial head CT scans neurologically deteriorate as a result of a delayed acute subdural hematoma. We present an unusual case of a young patient on no medications with no CT findings of an intracranial injury who neurologically declined due to a delayed acute subdural hematoma.Copyright © 2018 Elsevier Inc. All rights reserved.

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