Epilepsy in Dogs

Medical conditions in dogs

What is Epilepsy?

Epilepsy is a neurological disorder characterised by recurrent seizures. These seizures occur due to abnormal electrical activity in the brain. It’s like a temporary electrical storm that disrupts normal brain function.  

Symptoms and signs

How can I tell if my dog has epilepsy?

Seizures can manifest in various ways, and the severity can differ between dogs. Common signs include:  

  • Loss of Consciousness: Your dog may collapse and become unresponsive.
  • Convulsions: Involuntary muscle contractions, often involving paddling of the limbs.
  • Tremors or Shaking: Rhythmic muscle movements.
  • Drooling or Foaming at the Mouth: Excessive salivation.  
  • Incontinence: Loss of bladder or bowel control.  
  • Changes in Behaviour: Before or after a seizure, your dog may exhibit anxiety, confusion, or disorientation.  
  • “Fly biting” or other oral automatisms: Strange repetitive mouth movements.
  • Staring or twitching: In more focal seizures.

Diagnosis

How is epilepsy in dogs diagnosed?

Diagnosing epilepsy involves a combination of:

  • Detailed History: Your vet will ask about your dog’s seizure episodes, including frequency, duration, and any preceding or subsequent behaviours. Keep a detailed log of any seizures.  
  • Physical Examination: To assess your dog’s overall health.
  • Neurological Examination: To evaluate brain function.  
  • Blood Tests: To check for underlying metabolic disorders.  
  • Urine Tests: To check for underlying metabolic disorders.
  • MRI or CT Scan: Imaging of the brain to identify structural abnormalities.  
  • Cerebrospinal Fluid (CSF) Analysis: To check for infections or inflammation.  
  • Electroencephalogram (EEG): Measures electrical activity in the brain, but is not commonly used in general practice.

If no underlying cause is found, a diagnosis of idiopathic epilepsy may be made.

Causes

What are the causes of epilepsy in dogs?

Epilepsy can be classified into two main types:

  • Idiopathic Epilepsy: This is the most common type, where the cause is unknown. It’s often thought to have a genetic component.
  • Symptomatic Epilepsy: This occurs due to an identifiable underlying cause, such as:
    • Brain tumours
    • Head trauma
    • Infections (e.g., encephalitis)  
    • Metabolic disorders (e.g., liver or kidney disease)  
    • Toxins

Treatment

What are the treatment options for epilepsy in dogs?

While there’s no cure for epilepsy, it can be managed effectively with:

  • Antiepileptic Drugs (AEDs): Medications like phenobarbital, levetiracetam, or zonisamide are commonly used to control seizures.  
  • Regular Monitoring: Blood tests are necessary to monitor medication levels and liver function.  
  • Dietary Management: In some cases, dietary changes may be recommended.
  • Avoiding Triggers: Identifying and avoiding potential triggers, such as stress or loud noises.  

It’s crucial to work closely with your veterinarian to develop a treatment plan that’s tailored to your dog’s needs. Consistency with medication is essential for effective seizure control.

It’s natural to feel concerned when your dog experiences a seizure. Remember that you’re not alone, and with the right support, your dog can lead a happy and fulfilling life.