Incidence, Severity and Prognosis Associated with Hypernatremia in Dogs and Cats

Research output: Contribution to journalArticle

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Abstract

Background: Hypernatremia has been associated with substantial morbidity and death in human patients. The incidence and importance of hypernatremia in dogs and cats has not been determined. Hypothesis/Objectives: To describe the incidence of and prognosis associated with hypernatremia in dogs and cats at a university teaching hospital. Animals: A total of 16,691 dogs and 4,211 cats with measured blood or serum sodium concentration. Methods: Retrospective study. Medical records of animals with a blood or serum sodium concentration measured during a 60-month period were reviewed to determine the severity of hypernatremia and its associated case fatality rate. Cases with moderate (11-15 mmol/L above the reference range) or severe hypernatremia (≥16 mmol/L above the reference range) were further reviewed. Results: A total of 957 dogs (5.7%) and 338 cats (8.0%) were diagnosed with hypernatremia. Case fatality rates of dogs and cats with hypernatremia was 20.6 and 28.1%, respectively compared to 4.4 and 4.5% with a normal blood or serum sodium concentration (P < .0001). The magnitude of hypernatremia was linearly associated with a higher case fatality rate (P < .0001). Hypernatremia was associated with a higher case fatality rate than hyponatremia. Among the animals with moderate or severe hypernatremia, 50% of dogs and 38.5% of cats presented with community-acquired hypernatremia, and 50% of dogs and 61.5% of cats developed hospital-acquired hypernatremia. Conclusions and clinical importance: Hypernatremia was found infrequently in this population but was associated with increased case fatality rates in dogs and cats. Presence and severity of hypernatremia might be useful as a prognostic indicator.

Original languageEnglish (US)
Pages (from-to)794-800
Number of pages7
JournalJournal of Veterinary Internal Medicine
Volume29
Issue number3
DOIs
StatePublished - May 1 2015

Fingerprint

Hypernatremia
prognosis
Cats
Dogs
cats
incidence
dogs
Incidence
blood serum
sodium
blood
Mortality
hyponatremia
Sodium
animals
retrospective studies
Reference Values
morbidity
Serum
death

Keywords

  • Dysnatremia
  • Osmolality
  • Sodium
  • Water balance

ASJC Scopus subject areas

  • veterinary(all)

Cite this

Incidence, Severity and Prognosis Associated with Hypernatremia in Dogs and Cats. / Ueda, Y.; Hopper, Katrina; Epstein, Steven E.

In: Journal of Veterinary Internal Medicine, Vol. 29, No. 3, 01.05.2015, p. 794-800.

Research output: Contribution to journalArticle

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