• Osamah J Choudhry, Charles J Prestigiacomo, Nihar Gala, Shira Slasky, and Ziad C Sifri.
• *Department of Neurological Surgery; ‡Department of Radiology; and §Division of Trauma Surgery, Department of Surgery, UMDNJ--New Jersey Medical School, Newark, New Jersey.
• Neurosurgery. 2013 Nov 1;73(5):753-60; discussion 760.

BackgroundMild head injury (MHI) complicated by an intracranial hemorrhage (ICH) is a common cause of hospital admission after head trauma. Most patients are treated nonoperatively, remain neurologically stable, and are discharged uneventfully. However, a small percentage of patients suffer delayed neurological deterioration (DND). Little is known about the characteristics of DND after an MHI complicated by ICH.ObjectiveTo identify the cause, temporal course, and outcomes of patients who deteriorated neurologically after presenting with MHI and ICH.MethodsA retrospective review was performed of all adult patients presenting over 54 consecutive months with MHI and ICH. Patients who were treated nonoperatively after initial head computed tomography and had a subsequent DND (Glasgow Coma Scale score decrease ≥2) were identified. Demographics, neurological status, clinical course, radiographic findings, and outcome data were collected.ResultsOver 54 months, 757 patients with MHI plus ICH were admitted for observation; of these, 31 (4.1%) experienced DND. Eighty-seven percent of patients deteriorated within 24 hours after admission. Twenty-one patients (68%) deteriorated as a result of progressive intracranial hemorrhage, and 10 patients (32%) deteriorated as a result of medical causes. Seven patients (23%) died. Variables significantly associated with mortality included age > 60 years, coagulopathy, and change in Marshall computed tomography classification.ConclusionThe incidence of delayed neurological deterioration after MHI with ICH is low and usually occurs within 24 hours after admission. It results in significant morbidity and mortality if it is the result of progressive intracranial hemorrhage. Further research is needed to identify risk factors that can allow early detection and improve outcomes in these patients.

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