Clinical
Clinical
Clinical
Radiological
WFNS (World Federation of Neurosurgical Societies)
Hunt & Hess
Prognosis on Admission of Aneurysmal Subarachnoid Hemorrhage (PAASH)
Fisher
Grade 1
GCS score of 15 without focal deficit
Asymptomatic or minimal headache and slight neck stiffness
GCS 15
No SAH detected
Grade 2
GCS score of 13 or 14 without focal deficit
Moderate to severe headache and neck stiffness
No neurologic deficit except cranial nerve palsy
No neurologic deficit except cranial nerve palsy
GCS 11–14
Diffuse or vertical layer of subarachnoid blood <1mm thick
Grade 3
GCS score of 13 or 14 with focal deficit
Lethargy or confusion
Mild neurological deficit
Mild neurological deficit
GCS 8–10
Localized clot and/or vertical layer within the subarachnoid space >1mm thick
Grade 4
GCS score of 7-12
Stuporous
More severe neurological defecit
Possibly early decerebrate rigidity and vegetative disturbances
More severe neurological defecit
Possibly early decerebrate rigidity and vegetative disturbances
GCS 4–7
Intracerebral hemorrhage (ICH) or intraventricular hemorrhage (IVH) with diffuse or no SAH
Grade 5
GCS score of 3-6
Deep coma
Decerebrate rigidity and posturing
Decerebrate rigidity and posturing
GCS 3