Neurology
Dense MCA Sign
DOI: https://doi.org/10.21980/J8CS66A non-contrast computed tomography (CT) scan showed a hyperdensity along the right middle cerebral artery (MCA) consistent with acute thrombus. The red arrow highlights the hyperdensity in the annotated image.
Status Epilepticus in the Emergency Department
DOI: https://doi.org/10.21980/J8RC7VAt the end of this simulation session, the learner will: 1) Demonstrate the management of status epilepticus 2) Justify when airway intervention is needed for status epilepticus 3) Describe risk factors for status epilepticus 4) Prepare a differential diagnosis for the causes in status epilepticus.
Presentation of Significant Subarachnoid Hemorrhage without Loss of Consciousness
DOI: https://doi.org/10.21980/J80W29A non-contrast head CT demonstrated extensive subarachnoid hemorrhage occupying both cerebral convexities, the anterior interhemispheric fissure, the sylvian fissures, and the basal cisterns. Later CTA would show an 8 mm by 7 mm by 8mm MCA aneurysm near the M1/M2 junction and two pericallosal artery aneurysms, 7 by 6 mm and 8 by 5 mm respectively.
Acute Subdural Hematoma
DOI: https://doi.org/10.21980/J87C76Non-contrast Computed Tomography (CT) of the Head showed a dense extra-axial collection along the left frontal and parietal regions, extending superior to the vertex with mild mass effect, but no midline shift.
Intracranial Hemorrhage Following a 3-week Headache
DOI: https://doi.org/10.21980/J89885The patient’s head CT showed a significant area of hyperdensity consistent with an intracranial hemorrhage located within the left frontal parietal lobe (red arrow). Additionally, there is rightward midline shift up to 1.1cm (green arrow) and entrapment of the right lateral ventricle (blue arrow).
Approach to Acute Headache: A Flipped Classroom Module for Emergency Medicine Trainees
DOI: https://doi.org/10.21980/J8WC73At the end of this module, the learner will be able to: 1) list the diagnoses critical to the emergency physician that may present with headache; 2) identify key historical and examination findings that help differentiate primary (benign) from secondary (serious) causes of headache; 3) discuss the indications for diagnostic imaging, lumbar puncture and laboratory testing in patients with headache; 4) recognize life-threatening diagnoses on CT imaging and CSF examination; 5) describe treatment strategies to relieve headache symptoms.