The effect of 7.2% hypertonic saline solution on the duration of sodium gradient between the cerebrospinal fluid and the venous circulation in the dog.
To determine the duration of water movement from cerebrospinal fluid (CSF) into venous blood by the infusion of 7.2% hypertonic saline solution (HSS), the sodium gradient between venous blood and CSF were examined. Venous sodium concentrations remained higher than that in CSF for duration of 60 min following HSS infusion. By 90 min, the CSF sodium concentration reached the equilibrium with venous sodium concentration. Those data suggests that the duration of time during which water moved from CSF into capillaries in brain by the gradient of sodium concentration was less than 90 min.
Ito
Noriko
N
Department of Veterinary Medicine, College of Bioresource Sciences, Nihon University, Fujisawa, Japan.
Suzuki
Kazuyuki
K
Koie
Hiroshi
H
Tsumagari
Sigehisa
S
Kanayama
Kiichi
K
Miyahara
Mituyoshi
M
Asano
Ryuji
R
D000818:Animals; D002712:Chlorides / Q000097:blood / Q000134:cerebrospinal fluid; D004285:Dogs / Q000097:blood* / Q000134:cerebrospinal fluid*; D005260:Female; D007262:Infusions, Intravenous / Q000662:veterinary; D008297:Male; D010953:Plasma Volume / Q000187:drug effects / Q000662:veterinary; D011897:Random Allocation; D012462:Saline Solution, Hypertonic / Q000493:pharmacokinetics / Q000494:pharmacology*; D012964:Sodium / Q000097:blood* / Q000134:cerebrospinal fluid*
D002712:Chlorides; D012462:Saline Solution, Hypertonic; D012964:Sodium