Hunt & Hess Classification of Subarachnoid Hemorrhage

Product Name

Total

0

points

Signs/Symptoms

Mild Headache, Alert and Oriented, Minimal (if any) Nuchal Rigidity (+1)
Full Nuchal Rigidity, Moderate-Severe Headache, Alert and Oriented, No Neuro Deficit (Besides CN Palsy) (+2)
Lethargy or Confusion, Mild Focal Neurological Deficits (+3)
Stuporous, More Severe Focal Deficit (+4)
Comatose, showing signs of severe neurological impairment (ex: posturing) (+5)

Patients with Grade I

have an approximate
30% mortality

Patients with Grade II

have an approximate
40% mortality

Patients with Grade III

have an approximate
50% mortality

Patients with Grade IV

have an approximate
80% mortality

Patients with Grade V

have an approximate
90% mortality

Hunt WE, Hess RM. Surgical risk as related to time of intervention in the repair of intracranial aneurysms. Journal of Neurosurgery 1968 Jan;28(1):14-20.