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Updated: Nov 29, 2025

Double Direct Injection of Blood into the Cisterna Magna as a Model of Subarachnoid Hemorrhage
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Diagnosis and Initial Emergency Department Management of Subarachnoid Hemorrhage

Nicole M Dubosh1, Jonathan A Edlow1

  • 1Department of Emergency Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, One Deaconess Road, Rosenburg 2, Boston, MA 02115, USA.

Emergency Medicine Clinics of North America
|November 21, 2020
PubMed

Atraumatic subarachnoid hemorrhage represents a small proportion of strokes, but is a true medical emergency that results in significant morbidity and mortality. Making the diagnosis can be challenging and misdiagnosis can result in devastating consequences. There are several time-dependent diagnostic and management considerations for emergency physicians and other frontline providers. This article reviews the most up-to-date literature on the diagnostic workup of subarachnoid hemorrhage, avoiding misdiagnosis, and initial emergency department management recommendations.

Keywords:
Brain computed tomographyCerebral aneurysmLumbar punctureSubarachnoid hemorrhage

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