Table 3. Ionic data of the extracellular space in both monitored brain areas.

Monitored area	[Na+] mmol/L	[K+] mmol/L	[Cl-] mmol/L
Ischemic core	154.1 (135.3–199.8)	27.9 (4.0–49.4)	157.0 (132.3–187.0)
Ischemic penumbra	164.0 (130.7–208.0)	7.5 (3.7–44.0)	157.7 (147.2–208.0)

Values are summarized as median (min-max). Due to the minimum required volume for ion analysis, the median, minimum, and maximum values of the 3 ions in the core were made from 24 valid determinations, and in the penumbra area they were made from 19 valid determinations.