The article: Perry JJ, Stiell IG, Sivilotti ML, et al. Clinical decision rules to rule out subarachnoid hemorrhage for acute headache. JAMA. 2013;310:1248-1255.
The bottom line: Use of the Ottawa subarachnoid hemorrhage rule in the ED to help determine which patients need workup for possible SAH decreases the rate of missed SAH and allows clinicians to safely classify patients meeting none of the criteria as low risk. However, the rule does not decrease the investigation rate of SAH and still need ...Continue Reading →