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Generalized Tremors in Dogs: 198 Cases (2003-2023)
Theofanis Liatis1, Sofie F M Bhatti2, Steven De Decker1
1Department of Clinical Science and Services, Royal Veterinary College, Hatfield, UK.
Journal of Veterinary Internal Medicine
|March 28, 2025
Summary
Generalized tremors in dogs are most commonly caused by intoxication or idiopathic generalized tremor syndrome (IGTS). Clinical signs and history can help differentiate these conditions, guiding diagnosis and treatment for canine tremor disorders.
Area of Science:
- Veterinary Neurology
- Canine Medicine
- Toxicology
Background:
- Generalized tremors in dogs are not well-studied in large populations.
- Understanding the underlying causes is crucial for effective treatment.
Purpose of the Study:
- To describe the clinical signs, tremor characteristics, and associated diseases in dogs with generalized tremors.
- To identify clinical features that can help diagnose the underlying cause of tremors.
Main Methods:
- Retrospective study of 198 dogs diagnosed with generalized tremors between 2003 and 2023.
- Analysis of clinical data, including semiology, signalment, and diagnostic outcomes.
Main Results:
- Intoxication (46%) and idiopathic generalized tremor syndrome (IGTS, 24.7%) were the most frequent causes.
- Distinct clinical presentations differentiated IGTS (younger, female, lateralizing signs) from intoxication (male, variable age, symmetric signs).
- Specific clinical signs like behavioral changes, hypersalivation, and mentation changes were more common in intoxication, while hyporexia and vestibulocerebellar signs suggested IGTS.
Conclusions:
- Intoxication and IGTS are the primary differential diagnoses for generalized tremors in dogs.
- Clinical and historical data are valuable for differentiating causes and informing diagnostic and treatment strategies.
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