Table 1.

Patient Characteristics

Pt	Age/sex	Diagnosis	ICP method	MAP	mean IOP	ICP	mean VOP (sd)	NIHSS/GCS
1	71 M	NPH	Lumbar drain, intraoperative	98	15	11.7	17.4 (4.7)	0/15
2	53 M	R. temp ICH, craniotomy	Ventriculostomy.	97	10	7.0 (open) 22.5 (closed)	9.2 (1.0) 21.8 (2.8)	40×/5
3	61 M	Cerebell ICH	Ventriculostomy	108	4	11.0 (open) 40.6 (closed)	11.7 (2.4) 35.0 (3.3)	40×/3
4	61 F	Obstruct. HC TBI: IVH,SAH	VP shunt, intraoperative	89	15	8.8	11.8 (0.9)	1/14
5	83 F	NPH	VP shunt, intraoperative	102	21	13.2	23.8 (2.4)	0/15
6	46 M	Obstruct. HC congenital	VP shunt, intraoperative	102	14	25.0	31.5 (6.2)	0/15
7	53 M	R.temp-parietal ICH,IVH, craniotomy	Ventriculostomy	112	6	17.0 (open)	21.0 (4.5)	20/13
8	51 M	Communic. HC old TBI	Lumbar puncture	76	23	23.5	25.8 (3.9)	0/15
9	42 F	Vermis tumor, craniotomy	Ventriculostomy	105	7	10.0 (open)	10.9 (2.9)	NA/12
10	52 M	R. frontal contusion, TBI	ICP monitor	96	13	1.0	7.1 (1.6)	NA/6
11	22 M	Meningitis, acute HC	Ventriculostomy	110	10	24.0 (open)	20.6 (2.8)	42/4
						33.0 (closed)	26.9 (2.9)
						9.0 (open)	12.2 (0.7)
12	50 M	L. pariet-occip AVM: ICH,IVH	Ventriculostomy	73	14	11.5(closed)	13.4 (3.9)	2/14

Notes: All patients, except no. 10, evidenced hydrocephalus on brain imaging studies. Mean arterial, intraocular, intracranial and VOP pressures are in mm Hg. n = 16 observations, 8 O.D., 8 O.S.

Abbreviations: MAP: mean arterial pressure, IOP: intraocular pressure (resting), ICP: intracranial pressure, VOP: central retinal venous occlusion pressure, sd 1 standard deviation, NIHSS: Nat. Instit. Health Stroke Scale, GCS: Glasgow Coma Scale, NPH: normal pressure hydrocephalus, HC: hydrocephalus, AVM: arteriovenous malformation, VP: ventriculoperitoneal, TBI traumatic brain injury, IVH: intraventricular hemorrhage, SAH: subarachnoid hemorrhage, ICH: intracranial hemorrhage, O.D., O.S.: oculus dexter and sinster, NA not available