Peer-reviewed veterinary case report
Xylitol poisoning symptoms and outcomes in 192 dogs studied
By DuHadway, Meghan R et al.·Published in Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)·2015·Department of Small Animal Clinical Sciences, United States·View original on PubMed →
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Original publication title: Retrospective evaluation of xylitol ingestion in dogs: 192 cases (2007-2012).
- Species:
- dog
Plain-English summary
A group of 192 dogs that ingested xylitol, a sweetener found in many sugar-free products, were evaluated for symptoms like vomiting and lethargy. About 20% of these dogs showed clinical signs, with vomiting being the most common. Some dogs experienced dangerously low blood sugar levels and increased liver values, but all of them survived after treatment. The best outcome was seen in dogs that ingested lower amounts of xylitol and did not develop liver issues. If your dog has eaten something with xylitol, it's crucial to get them to a vet for monitoring and treatment.
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Abstract
OBJECTIVE: To summarize the signalment, clinical signs, prevalence of decreased blood glucose concentration (BG), prevalence of increased liver values, treatment, and outcome in dogs known to have ingested xylitol. DESIGN: Retrospective study from December 2007 to February 2012 SETTING: Three university teaching hospitals. ANIMALS: One hundred ninety-two client-owned dogs with known or suspected xylitol ingestion. INTERVENTIONS: None. MEASUREMENTS AND MAIN RESULTS: The median ingested xylitol dose was 0.32 g/kg (range 0.03-3.64 g/kg). Clinical signs were present in 39 (20%) dogs on presentation to the veterinary teaching hospitals. The most common clinical sign was vomiting (n = 25), followed by lethargy (12). The median duration of clinical signs prior to presentation was 93 minutes (range 0-5,040 minutes). Dogs that developed clinical signs ingested a significantly higher dose of xylitol than those that were asymptomatic. Thirty dogs became hypoglycemic (BG ≤ 3.3 mmol/L [60 mg/dL]) at some time point during their hospitalization. When evaluating all dogs, there was a significant difference between the initial and lowest BGs. Thirty dogs had increased alanine aminotransferase activity or total serum bilirubin concentration. Dogs with increases in alanine aminotransferase activity or total serum bilirubin concentration had a significantly lower nadir BG. All dogs survived to discharge and 158 were known to be alive at 28 days. The rest were lost to follow up. CONCLUSIONS: The prognosis for dogs evaluated by a veterinarian that ingest lower doses of xylitol and do not develop liver failure is excellent. Dogs ingesting xylitol should be hospitalized and monitored for variations in BG, because BG drops in most dogs following presentation. Additional studies are needed in dogs ingesting higher doses of xylitol before correlations between dose and the development of clinical signs or liver failure can be established. Treatment and prognosis for these dogs warrants further investigation.
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Search related cases →Original publication on PubMed: https://pubmed.ncbi.nlm.nih.gov/26220654/