Table 1.

Patient characteristics, treatments and complications

Patients	Hunt and Hess IV/modified Fisher IV, no pupil dilatation	Hunt and Hess V/modified fisher IV, dilated pupils
Total = 18	12a (1 nonresponder)	6a
Mean age	59.6 (range 38–83)	58.5 (range 41–80)
Gender	7 Females, 5 males	3 Females, 3 males
Aneurysm location	MCA n = 3, BA n = 3, PICA n = 1, ACA/A. communicans Anterior n = 5, ICA n = 2, multiple locations n = 2	BA n = 1, VA n = 1, PICA n = 1, MCA n = 2, ACoA n = 2, ICA n = 1, multiple location: n = 2
Treatment	Coil n = 10, Clip n = 2	Coil n = 3, Clip: n = 2, combined n = 1
Medical history	n = 11: Chronic obstructive pulmonary disease, arterial hypertension nephropathy, diabetes mellitus, stroke	n = 3: arterial hypertension, alcohol abuse
Missing segments in the circle of Willis—perfusion by a dominant vessel	1	1
Ventriculostomy	12	6
Intubated and sedated	12b	6
Re-bleeding	0	2
Ultra-early vasospasm	4b	3
Initial reanimation, intra- cerebral hemorrhage (n = 8, 5 surgically treated) and acute subdural hematoma (n = 1), ventricular fibrillation	5	6
Coiling or clipping associated infarctions	3	2
Severe complications: sinus thrombosis, type II heparin-induced thrombosis, pulmonary embolism, sepsis, acute renal failure, aspiration pneumonia, diabetes insipidus, brain edema (with craniectomy, n = 5)	8	7
Intraventricular hemorrhage	2	4

ACA anterior cerebral artery, ACoA anterior communicanting artery, BA basilar artery, ICA internal cerebral artery, MCA middle cerebral artery, PICA posterior inferior cerebellar artery

^aNot due to hydrocephalus

^bIncluding a nonresponder