Table 1.

Clinical grading scales following subarachnoid hemorrhage.

	Hunt and Hess scale (36)	World Federation of Neurological Surgeons Scale (37)
Grade	Symptoms	Glasgow Coma Scale	Motor deficits
I	Asymptomatic or mild headache	15	Absent
II	Moderate to severe headache, nuchal rigidity, with or without cranial nerve deficits	14-13	Absent
III	Confusion, lethargy or mild focal symptoms	14-13	Present
IV	Stupor and/or hemiparesis	12-7	Present or absent
V	Comatose and/or extensor posturing	6-3	Present or absent