International veterinary epilepsy task force consensus proposal: diagnostic approach to epilepsy in dogs

Area of Science:

• Veterinary Neurology
• Canine Epilepsy Research
• Diagnostic Standards

Background:

• Epilepsy diagnosis in dogs lacks consistency, impacting clinical and research outcomes.
• Differentiating true epileptic seizures from other paroxysmal events is challenging.
• A standardized diagnostic approach is crucial for effective canine epilepsy management.

Purpose of the Study:

• To present a consensus proposal for diagnosing epilepsy in dogs.
• To enhance diagnostic consistency in both clinical practice and research settings.
• To provide clear criteria for differentiating epileptic seizures and diagnosing idiopathic epilepsy.

Main Methods:

• Outlined a two-step diagnostic approach: confirming epileptic seizures and identifying their cause.
• Detailed criteria for differentiating epileptic seizures from non-epileptic events.
• Established a three-tier system for diagnosing idiopathic epilepsy (IE) based on clinical, laboratory, and advanced imaging findings.

Main Results:

• Tier I IE diagnosis requires: ≥2 unprovoked seizures, onset 6mo-6yrs, normal exam/basic tests.
• Tier II adds: normal bile acids, brain MRI, and CSF analysis.
• Tier III includes: characteristic electroencephalographic abnormalities.
• Recommended advanced diagnostics (MRI, CSF) for specific cases like early/late onset or drug-resistant IE.

Conclusions:

• The consensus proposal provides a standardized framework for diagnosing canine epilepsy.
• Implementation aims to improve diagnostic accuracy and consistency.
• Future advancements in neuroimaging, EEG, and genetics will further refine these diagnostic recommendations.