prognostic factors

Last reviewed 12/2022

There are a range of prognostic factors for SAH:

• grade, according to the scheme of Hull and Hess:
  • I - headache and mild meningism } 95% cure, 1% mort.
  • II - severe headache and meningism
  • III - confused or focal signs
  • IV - drowsy } 35% mortality, 35% morbidity
  • V - comatose } 35% mortality, 35% morbidity

• age - the younger the patient, the better the prognosis

• hypertension - increasing morbidity with increasing blood pressure - ischaemic deficiency

• amount of blood seen on CT - the less blood there is, the less vasospasm occurs