Effects of fenoldopam on kidney function parameters and its therapeutic efficacy in the management of acute kidney injury in dogs with heatstroke

Gilad Segev*, Yaron Bruchim, Noga Berl, Adar Cohen, Itamar Aroch

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

13 Scopus citations


Background: Acute kidney injury (AKI) is common in dogs, but evidence of efficacy of its treatment is lacking. Objective: To evaluate the efficacy of fenoldopam in the management of AKI. Animals: Forty dogs with naturally occurring heatstroke. Methods: Dogs were prospectively enrolled and divided into treatment and the placebo groups (fenoldopam, constant rate infusion [CRI] of 0.1 µg/kg/min or saline, respectively). Urine production (UP) was measured using a closed system. Urinary clearances were performed at 4, 12, and 24 hours after presentation to estimate the effect of fenoldopam on UP, glomerular filtration rate (GFR) and sodium fractional excretion (NaFE). Results: At presentation, severity of heatstroke, based on a previously developed scoring system, was similar between the study groups, but was significantly worse in nonsurvivors compared with survivors. Fenoldopam administration was not associated with hypotension. Overt AKI was diagnosed, based on the International Renal Interest Society guidelines in 22/40 (55%) of the dogs. Overall, 14/40 dogs (35%) died, with no significant (P =.507) mortality rate difference between the fenoldopam (6/20 dogs; 30%) and placebo (8/20; 40%) groups. The proportion of dogs with AKI did not differ between the fenoldopam and the placebo groups (9/20; 45% versus 13/20; 65%, respectively; P =.204). There were no differences in UP, GFR, and NaFE between the fenoldopam and the placebo groups. Conclusion and Clinical Importance: Fenoldopam CRI at 0.1 µg/kg/min did not have a clinically relevant effect on kidney function parameters in dogs with severe heatstroke-associated AKI.

Original languageAmerican English
Pages (from-to)1109-1115
Number of pages7
JournalJournal of Veterinary Internal Medicine
Issue number3
StatePublished - 1 May 2018

Bibliographical note

Publisher Copyright:
Copyright © 2018 The Authors. Journal of Veterinary Internal Medicine published by Wiley Periodicals, Inc. on behalf of the American College of Veterinary Internal Medicine.


  • acute renal failure
  • canine
  • dopamine
  • hypotension
  • renal


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