. 2021 Dec 21;11(1):e022943. doi: 10.1161/JAHA.121.022943

Table 2.

Maximal Percentage Change From Baseline in CPP, Pial Arteriole Diameter, RBC Velocity, RBC Flux, and ETCO₂ During Arterial Blood Pressure Manipulations

Variable	CPP, median (IQR), % change	Diameter, % change, median (IQR)	RBC velocity, % change, median (IQR)	RBC flux, % change, median (IQR)	ETCO₂, % change, median (IQR)
Hypotensive experiments	−84.6 (13.6)	56.3 (43.3)	−86.5 (8.7)	−81.5 (14.5)	−5.0 (4.8)
Hypertensive experiments	95.3 (19.3)	−16.4 (13.6)	123.7 (84.1)	130.7 (14.2)	4.3 (7.1)

Variable

CPP, median (IQR), % change

Diameter, % change, median (IQR)

RBC velocity, % change, median (IQR)

RBC flux, % change, median (IQR)

ETCO₂, % change, median (IQR)

Hypotensive experiments

−84.6

(13.6)

56.3

(43.3)

−86.5

(8.7)

−81.5

(14.5)

−5.0

(4.8)

Hypertensive experiments

95.3

(19.3)

−16.4

(13.6)

123.7

(84.1)

130.7

(14.2)

4.3

(7.1)

CPP indicates cerebral perfusion pressure; ETCO₂, end‐tidal CO₂; IQR, interquartile range; and RBC, red blood cell.