Table 1 Population characteristics

Age, years (mean ± SD)

61 ± 12

Female sex, n (%)

22 (73%)

BMI, kg/m²(mean ± SD)

24.3 ± 2.7

Past medical history, n (%):

 Active smoking

14 (47%)

 Arterial hypertension

9 (30%)

 Dyslipidemia

4 (13%)

 Obesity (BMI >30 kg/m²)

1 (3%)

 Diabetes mellitus

0 (0%)

 Pheochromocytoma

0 (0%)

 Thyroid disease (substituted hypothyroidism)

1 (3%)

 Renal disease

0 (0%)

 Liver disease

0 (0%)

Fisher grade (1/2/3/4), n (%)

0 (0%)/3 (10%)/9 (30%)/18 (60%)

WFNS score (1/2/3/4/5), n (%)

12 (40%)/6 (20%)/3 (10%)/0 (0%)/9 (30%)

Aneurysm position, n (%)

 ICA

7 (24%)

 MCA

10 (33%)

 AComA/ACA

10 (33%)

 VA/BA

1 (3%)

 PCA/PComA

2 (7%)

Aneurysm treatment

 Coiled, n (%)

27 (90%)

 Craniotomy, n (%)

3 (10%)

 Day of treatment, (mean ± SD)

1.9 ± 0.7

ICU period, n (%):

 Vasospasm

14 (47%)

 Delayed cerebral ischemia

8 (27%)

 Re-bleeding

4 (13%)

 Hydrocephalus (derivated)

16 (53%)

 Tracheostomy

11 (37%)

ICU length of stay, day (mean ± SD)

16 ± 8

Level of glucose just before ¹⁸ F-FDG PET

139 ± 4

 (mg/dl, mean ± SD)