Table:

Clinical and imaging scales

	Clinical grading scale		Imaging grading scale
	WFNS scale	Hunt Hess scale	Modified Fisher scale	SEBES
Prediction purpose	Outcome	Outcome	Delayed cerebral ischaemia	Quantify oedema
Range	1–5	1–5	0–4	0–4
Criteria	··	··	Quantify location and extent of SAH and IVH	At two levels in each hemisphere: (1) effacement of sulci or (2) disruption of grey-white matter
Grade
0	··	··	No SAH	··
1	GCS 15	Mild headache	Thin SAH, no IVH	··
2	GCS 13–14, no motor deficit	Moderate to severe headache, cranial nerve palsy, nuchal rigidity	Thin SAH, with IVH	··
3	GCS 13–14, with motor deficit	Lethargy or confusion, mild focal deficit	Thick SAH, no IVH	··
4	GCS 7–12	Stupor, hemiparesis	Thick SAH, with IVH	··
5	GCS 3–6	Coma, decerebrate posturing	··	··

WFNS=World Federation of Neurological Surgeons. SEBES=subarachnoid hemorrhage early brain oedema score. GCS=Glasgow coma scale. SAH=subarachnoid haemorrhage. IVH=intraventricular haemorrhage.