SAH	subarachnoid hemorrhage
EBI	early brain injury
SBI	secondary brain injury
DCI	delayed cerebral ischemia
TCD	transcranial Doppler ultrasound
CT	computed tomography
HRV	heart rate variability
CAA	cerebral amyloid angiopathy
IMC	intermediate care unit
ICU	intensive care unit
mRS	modified Rankin scale
LTFU	lost to follow-up
IVH	intraventricular hemorrhage
TIA	transient ischemic attack
ACE	angiotensin-converting enzyme
ARB	angiotensin II receptor blockers
WFNS	World Federation of Neurosurgical Societies
NIHSS	National Institutes of Health stroke scale
mFS	modified Fisher scale
LOS	length of stay
RRI	R–R interval
BP	blood pressure
SBP	systolic blood pressure
DBP	diastolic blood pressure
SD	standard deviation
RMSSD	root mean square of successive difference
CV	coefficient of variation
TRS	trigonometric regressive spectral analysis
LF	low frequency
HF	high frequency
nu	normalized
Max.	maximum
TTM	target temperature monitoring
AUC	area under the curve