Title : The effects of acute total asphyxia and metabolic acidosis on cerebrospinal fluid bicarbonate regulation in newborn puppies.

Pub. Date : 1980 Apr

PMID : 7375186






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1 We evaluated CSF [HCO3-] regulation in lightly anesthetized newborn puppies following: (1) acute total asphyxia; (2) metabolic acidosis; and (3) metabolic acidosis induced after acute asphyxia. Bicarbonates colony stimulating factor 2 Homo sapiens
2 Five and one-half min of total asphyxia resulted in a 4.4 mM/liter decrease in mean CSF [HCO3-]. Bicarbonates colony stimulating factor 2 Homo sapiens
3 During 65 min of recovery with mechanical ventilation mean CSF [HCO3-] increased 1.7 mM/liter. Bicarbonates colony stimulating factor 2 Homo sapiens
4 With acidosis in nonasphyxiated control puppies, CSF [HCO3-] decreased steadily. Bicarbonates colony stimulating factor 2 Homo sapiens
5 At 4 hr, the ratio, delta CSF [HCO3-]/delta plasma [HCO3-], was 0.43, a value close to that observed in adults of many species with metabolic acid-base disturbances, 0.41. Bicarbonates colony stimulating factor 2 Homo sapiens
6 With acidosis in asphyxiated puppies allowed 1 hr of recovery, the time course and mean values of plasma and CSF [HCO3-] were indistinguishable from those of the nonasphyxiated acidotic controls. Bicarbonates colony stimulating factor 2 Homo sapiens
7 Newborn puppies appear to regulate CSF [HCO3-] in response to acute asphyxia or metabolic acidosis, and acute asphyxia does not impair the puppy"s ability to regulate CSF [HCO3-] in metabolic acidosis. Bicarbonates colony stimulating factor 2 Homo sapiens