Christopher T. Quinn, Randi Rotne, Emily Dockray, Andrew Neil Walton
{"title":"Perioperative acute kidney injury in dogs undergoing elective desexing surgery","authors":"Christopher T. Quinn, Randi Rotne, Emily Dockray, Andrew Neil Walton","doi":"10.1016/j.vaa.2025.10.005","DOIUrl":null,"url":null,"abstract":"<div><h3>Objective</h3><div>To report the incidence of acute kidney injury (AKI) in dogs after elective desexing surgery.</div></div><div><h3>Study design</h3><div>Prospective observational clinical study.</div></div><div><h3>Animals</h3><div>A group of 165 (71 male and 94 female) dogs admitted for castration or ovariohysterectomy.</div></div><div><h3>Methods</h3><div>Inclusion criteria were normal physical examination findings and no history of cardiovascular or renal disease. Serum creatinine (sCr) was measured before anaesthesia, and 24 and 48 hours postoperatively. AKI was defined by an increase (> 26 μmol L<sup>–1</sup>) in sCr from preoperative to 24 or 48 hours postoperatively. Changes in mean sCr pre-to post-anaesthesia were compared using paired <em>t</em>-tests. Differences in variables were compared between dogs with and without AKI with Fisher’s exact test for categorical data and continuous data using <em>t</em>-test or Mann–Whitney <em>U</em> test. Multivariable logistic regression was used to assess the significance of potential risk factors identified by univariable comparisons between AKI and non-AKI cases.</div></div><div><h3>Results</h3><div>Mean ± standard deviation age and body weight were 2.1 ± 1.7 years and 20.3 ± 10 kg, respectively. Mean change in pre-sCr to 24 and 48 hours was –6.9 ± 32.8 and –0.2 ± 22.8 μmol L<sup>–1</sup>, respectively (<em>p</em> > 0.05). sCr increased > 26 μmol L<sup>–1</sup> in eight dogs at 24 hours and in an additional four dogs at 48 hours. Twelve dogs (7.3%) were classified with AKI: one grade 2 AKI (sCr 175 μmol L<sup>–1</sup>) and 11 as grade 1 (sCr increase > 26 μmol L<sup>–1</sup> but within reference range). In addition, four of these dogs had oliguria in the first 24 hours postoperatively. Hypotension occurred frequently (67.9%) and along with female sex was significantly associated with AKI.</div></div><div><h3>Conclusions and clinical relevance</h3><div>Perioperative AKI may be a common complication of elective desexing surgery in dogs. Potential risk factors include hypotension and female sex.</div></div>","PeriodicalId":23626,"journal":{"name":"Veterinary anaesthesia and analgesia","volume":"53 1","pages":"Article 101149"},"PeriodicalIF":2.5000,"publicationDate":"2026-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Veterinary anaesthesia and analgesia","FirstCategoryId":"97","ListUrlMain":"https://www.sciencedirect.com/science/article/pii/S1467298725002545","RegionNum":2,"RegionCategory":"农林科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2025/10/27 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"VETERINARY SCIENCES","Score":null,"Total":0}
引用次数: 0
Abstract
Objective
To report the incidence of acute kidney injury (AKI) in dogs after elective desexing surgery.
Study design
Prospective observational clinical study.
Animals
A group of 165 (71 male and 94 female) dogs admitted for castration or ovariohysterectomy.
Methods
Inclusion criteria were normal physical examination findings and no history of cardiovascular or renal disease. Serum creatinine (sCr) was measured before anaesthesia, and 24 and 48 hours postoperatively. AKI was defined by an increase (> 26 μmol L–1) in sCr from preoperative to 24 or 48 hours postoperatively. Changes in mean sCr pre-to post-anaesthesia were compared using paired t-tests. Differences in variables were compared between dogs with and without AKI with Fisher’s exact test for categorical data and continuous data using t-test or Mann–Whitney U test. Multivariable logistic regression was used to assess the significance of potential risk factors identified by univariable comparisons between AKI and non-AKI cases.
Results
Mean ± standard deviation age and body weight were 2.1 ± 1.7 years and 20.3 ± 10 kg, respectively. Mean change in pre-sCr to 24 and 48 hours was –6.9 ± 32.8 and –0.2 ± 22.8 μmol L–1, respectively (p > 0.05). sCr increased > 26 μmol L–1 in eight dogs at 24 hours and in an additional four dogs at 48 hours. Twelve dogs (7.3%) were classified with AKI: one grade 2 AKI (sCr 175 μmol L–1) and 11 as grade 1 (sCr increase > 26 μmol L–1 but within reference range). In addition, four of these dogs had oliguria in the first 24 hours postoperatively. Hypotension occurred frequently (67.9%) and along with female sex was significantly associated with AKI.
Conclusions and clinical relevance
Perioperative AKI may be a common complication of elective desexing surgery in dogs. Potential risk factors include hypotension and female sex.
期刊介绍:
Veterinary Anaesthesia and Analgesia is the official journal of the Association of Veterinary Anaesthetists, the American College of Veterinary Anesthesia and Analgesia and the European College of Veterinary Anaesthesia and Analgesia. Its purpose is the publication of original, peer reviewed articles covering all branches of anaesthesia and the relief of pain in animals. Articles concerned with the following subjects related to anaesthesia and analgesia are also welcome:
the basic sciences;
pathophysiology of disease as it relates to anaesthetic management
equipment
intensive care
chemical restraint of animals including laboratory animals, wildlife and exotic animals
welfare issues associated with pain and distress
education in veterinary anaesthesia and analgesia.
Review articles, special articles, and historical notes will also be published, along with editorials, case reports in the form of letters to the editor, and book reviews. There is also an active correspondence section.