Association of transcranial Doppler blood flow velocity slow waves with delayed cerebral ischemia in patients suffering from subarachnoid hemorrhage: a retrospective study

Intensive Care Medicine Experimental

Table 1 Characteristics of all patients and subgroups with and without DCI

Variables	Overall	DCI	Non-DCI	p values
Variables	(N = 32)	(N = 19)	(N = 13)	p values
Age, years ± SD	52.4 ± 10	54.15 ± 11.8	50 ± 7.6	0.27^$
Sex (male/female)	12/20	8/11	4/9	0.74^#
WFNS (mean)	2.37 ± 1.33	2.36 ± 1.38	2.38 ± 1.32	0.97^#
Modified Fisher scale	3 ± 0.8	3.2 ± 0.7	3.1 ± 1	0.94^#
GCS admission	12.2 ± 3.4	12.4 ± 3.2	11.9 ± 3.8	0.70^#
GCS discharge	13.8 ± 2.9	13.2 ± 3	14.1 ± 1	0.16^#
GOS	4 ± 1	4 ± 1	4 ± 1	0.55^#
Aneurysm location
1. AcomA	9	6	3	0.53^#
2. MCA	8	4	4	0.93^#
3. PcomA	9	6	3	0.12^#
4. PICA	4	2	2	0.46^#
5. BA	1	0	1	0.35^#
6. ICA	1	1	0	0.32^#
VS side
1. Right	14	9	5	0.44^#
2. Left	11	6	5	0.67^#
3. Bilateral	7	4	3	0.72^#
Clipping/coiling	20/12	12/7	8/5	0.40^#
Rebleeding	1	0	1	0.32^#

DCI delayed cerebral ischemia, WFNS World Federation of Neurosurgical Societies, GCS Glasgow Coma Scale, GOS Glasgow Outcome Scale, AcomA anterior communicating artery, MCA middle cerebral artery, PcomA posterior communicating artery, PICA posterior inferior cerebellar artery, BA basilar artery, ICA internal carotid artery, VS vasospasm, SD standard deviation
^$2-tailed t-test, ^# Fisher’s exact test