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January 2016

Subarachnoid Hemorrhage and Loss of Consciousness

Author Affiliations
  • 1Division of Neurosurgery, St Michael’s Hospital, Toronto, Ontario, Canada
  • 2Labatt Family Centre of Excellence in Brain Injury and Trauma Research, Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael’s Hospital, Toronto, Ontario, Canada
  • 3Department of Surgery, University of Toronto, Toronto, Ontario, Canada
JAMA Neurol. 2016;73(1):17-18. doi:10.1001/jamaneurol.2015.3485

In this issue of JAMA Neurology, Suwatcharangkoon et al1 retrospectively analyze a prospective series of 1460 patients with spontaneous subarachnoid hemorrhage (SAH). Forty percent of the patients had loss of consciousness (LOC) at the onset of SAH. The key finding was that LOC was associated with worse clinical grade, larger hemorrhages, global cerebral edema, and poor outcome, although not with delayed cerebral ischemia.

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