Ottawa subarachnoid hemorrhage rule
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Indications
- evaulation for subarachnoid hemorrhage
Procedure
- age >= 40 years
- neck pain or stiffness with limited neck flexion on examination
- witnessed loss of consciousness, or onset during exertion
- thunderclap headache
* Ottawa SAH rule sensitivity 100% with specificity 14%[2]
More general terms
References
- ↑ Perry JJ, Stiell IG, Sivilotti ML et al Clinical decision rules to rule out subarachnoid hemorrhage for acute headache. JAMA. 2013 Sep 25;310(12):1248-55. PMID: https://www.ncbi.nlm.nih.gov/pubmed/24065011
- ↑ 2.0 2.1 Perry JJ, Sivilotti MLA, Sutherland J et al. Validation of the Ottawa Subarachnoid Hemorrhage Rule in patients with acute headache. CMAJ 2017 Nov 13; 189:E1379 PMID: https://www.ncbi.nlm.nih.gov/pubmed/29133539