Table 2

Comparision between the presence of any collaterals versus no collateral grades

Characteristics	No collaterals (0) (n=30)		Any collaterals (1,2,3,4) (n=32)		P value
Characteristics		%			P value
Demographics
Age>53 years' old	16	53	11	32	NS
Female	18	64	25	74	NS
Non-caucasian ethnicity	17	63	21	62	NS
Hypertension	13	46	13	41	NS
Ever smoked (>100 cigarettes)	17	65	19	56	NS
Diabetes	2	7	0	0	NS
Admission predictors
Hunt and Hess Grade≥3	16	60	21	62	NS
Glasgow Coma Score<8	6	20	11	32	0.073 (NS)
Sentinel headache	9	36	4	13	0.036
Ictal loss of consciousness	10	37	14	42	NS
APACHE-II Physiologic Score	16	9–21	13	10–19	NS
AdmissionCT scan
Thick SAH*	19	64	25	74	NS
Global cerebral edema	15	54	16	47	NS
Intraventricular hemorrhage	20	64	17	50	NS
Intracerebral hemorrhage	7	25	12	35	NS
SAH sum score	17	6–25	21	12–26	NS
IVH sum score	1.5	0.0–4.0	0.5	0–3.25	NS
Aneurysm characteristics
Anterior location	14	47	25	74	0.028
Aneurysm size>10 mm	0	0	2	6	NS
Clip repair procedure	20	71	30	88	NS
Complications
Neurological
Rebleed	2	7	4	12	NS
Herniation	3	11	4	12	NS
Medical
Fever>101.5 °F	15	54	17	50	NS
Pneumonia	9	32	12	35	NS
Sepsis	3	11	3	9	NS
Cardiac
Arrhythmias	5	18	6	18	NS
Cardiac arrest (in ICU)	0	0	0	0	NA
Myocardial infarction	6	21	5	15	NS
Pulmonary edema	8	29	7	21	NS
Outcomes
Clinical deterioration due to cerebral vasospasm	19	63	26	77	NS
DCI	22	73	24	77	NS
Poor functional outcome at 3 months	7	23	8	24	NS
Severity of vasospasm
Mild	11	37	3	9	0.007
Moderate	9	30	6	18	0.244 (NS)
Severe	10	33	21	62	0.023