Neurology Emergency Medicine Strong — sensitivity ~100% for SAH in derivation and validation cohorts
Ottawa SAH Rule for Headache Evaluation
Identifies alert, non-traumatic headache patients who are at risk for subarachnoid haemorrhage (SAH) and require investigation. ALL criteria must be absent to rule out SAH.
References
- Perry JJ, et al. Sensitivity of computed tomography performed within six hours of onset of headache for diagnosis of subarachnoid haemorrhage: prospective cohort study. BMJ. 2011;343:d4277.
- Perry JJ, et al. Clinical decision rules to rule out subarachnoid hemorrhage for acute headache. JAMA. 2013;310(12):1248–1255.
Related
Curated clinical cross-links plus same-class fallbacks.
Calculators
Drugs
- Cetuximab · Anti-EGFR Monoclonal Antibody — Head and Neck Cancer
- Cisplatin · Platinum Chemotherapy — Head and Neck Cancer
- Methotrexate · Chemotherapy / Immunosuppressant — Head and Neck / Granulomatosis
- Pembrolizumab (Head and Neck SCC) · PD-1 Inhibitor
- Nivolumab (Head and Neck SCC) · PD-1 Inhibitor
- Tranexamic Acid (Surgical / Trauma Haemorrhage) · Antifibrinolytic (Haemostatic)
Pathways
- Acute Stroke / TIA Assessment · NICE NG128; RCP Stroke Guidelines 2023
- Status Epilepticus (Adults) · NICE CG137; ESEM guidelines; RCP Neurology Guidelines
- Suspected Subarachnoid Haemorrhage · NICE NG228; RCEM 2023; AHA/ASA 2023
- Adult Head Injury · NICE NG232 (2023)
- Bell's Palsy / Facial Nerve Palsy · ENT UK 2017; AAN
- Vertigo Workup · ENT UK; NICE CKS
Decision support only — verify against MDCalc, NICE, or your local guideline before clinical use.