Open AccessCerebrospinal Fluid Composition of Cattle with Endotoxin‐induced Mastitis Treated with Isotonic (0.9%) or Hypertonic (7.5%) Sodium Chloride
Author(s) -
Tyler Jeff W.,
Welles Elizabeth G.,
Sorjonen Donald C.,
Spano Joseph S.,
Gaslin J. Todd,
Spears Harold
Publication year - 1993
Publication title -
journal of veterinary internal medicine
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.356
H-Index - 103
eISSN - 1939-1676
pISSN - 0891-6640
DOI - 10.1111/j.1939-1676.1993.tb03175.x
Subject(s) - tonicity , hypertonic saline , sodium , cerebrospinal fluid , medicine , isotonic solutions , saline , isotonic , endocrinology , composition (language) , chemistry , linguistics , philosophy , organic chemistry
This study examined the safety of intravenous hypertonic saline in cattle with experimental gram‐negative endotoxemia. Cerebrospinal fluid (CSF) composition was examined in five control cows and eight treated cows 24 hours after the intramammary infusion of 1 mg of endotoxin. Four of the endotoxin challenged cows were treated intravenously with isotonic (0.9%) sodium chloride and four cows were treated intravenously with hypertonic (7.5%)sodium chloride. Decreased CSF osmolality, and sodium and alpha globulin concentrations and increased CSF concentrations of beta globulin were observed in both endotoxin‐challenged saline‐treated groups. No CSF compositional differences were observed between endotoxin‐challenged cows receiving isotonic or hypertonic saline. Although no cytologic or biochemical evidence of salt poisoning was observed in cows receiving hypertonic saline, significant changes were observed in the CSF composition of both endotoxin‐infused saline‐treated groups.