Abstract
Moderate or severe traumatic brain injury (TBI) resulting from cranial trauma is usually easily recognizable. Mild TBI (MTBI), however, may escape detection at presentation because of delayed symptoms and the absence of radiographic abnormalities. Despite its subtle or delayed presentation, the spectrum of symptoms often experienced after MTBI, collectively referred to as "postconcussive syndrome," may cause serious psychosocial dysfunction. To assess the sensitivity of emergency department screening for MTBI, a prospective follow-up study was conducted on a group of patients (N = 129) who had been evaluated at a regional trauma center after blunt trauma. None had symptoms or signs of TBI at presentation, nor any history of direct cranial trauma. All were discharged to home from the emergency department without a diagnosis of TBI. At 1 month after injury, 41 of 129 (32%) patients described an increase in symptoms consistent with MTBI. The most common symptoms were insomnia (62%), headaches (58%), irritability (56%) and fatigue (56%). At 2 months, most symptoms had decreased significantly, and none had increased in severity. Despite improvement in their symptoms over that time period, 11% of those with persistent symptoms remain...Continue Reading
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