Ottawa Subarachnoid Hemorrhage (SAH) Rule for Headache Evaluation

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References

  1. Mahdi Roostaei. Diagnostic Accuracy and Application of Subarachnoid Hemorrhage Decision Rules Among Patients With Non-Traumatic Acute Headache: A Systematic Review and Meta-Analysis.. Academic emergency medicine : official journal of the Society for Academic Emergency Medicine, 2025
  2. Brit Long. In nontraumatic acute headache in the ED, the Ottawa and Emerald rules have high sensitivity but low specificity for SAH.. Annals of internal medicine, 2025
  3. Matthew Walton. Management of patients presenting to the emergency department with sudden onset severe headache: systematic review of diagnostic accuracy studies. Emergency Medicine Journal : EMJ, 2022
  4. S. English. External Validation Demonstrated The Ottawa SAH Prediction Models Can Identify pSAH Using Health Administrative Data.. Journal of clinical epidemiology, 2020
  5. M. Haydel. In acute headache, the Ottawa Subarachnoid Hemorrhage rule had 100% sensitivity and 14% specificity. Annals of Internal Medicine, 2018
  6. Nicole M Dubosh. Sensitivity of Early Brain Computed Tomography to Exclude Aneurysmal Subarachnoid Hemorrhage: A Systematic Review and Meta-Analysis.. Stroke, 2016
  7. J. Perry. Clinical decision rules to rule out subarachnoid hemorrhage for acute headache.. JAMA, 2013