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Identifying Different Types of Seizures in Dogs

Identifying Different Types of Seizures in Dogs

Our Rock Hill vets see a number of different types of seizures in dogs which can range in severity from virtually undetectable to severe. In this blog we explain different types of seizures your dog could have and what you should do if your dog has a seizure.

Can dogs have seizures?

Our Rock Hill vets often diagnose seizures in dogs, but the type of seizure an individual dog may have, and how these different types can affect your dog can be very different.

While there are different categorizations of seizures your dog may experience, it is not unusual for an individual dog to experience more than one type of seizure, and it may surprise you to know that not all seizures necessarily involve convulsions.

In dogs, seizures typically happen suddenly, without warning, and last just a brief period of time (a few seconds to a couple of minutes).

If your dog has a seizure, remain calm and try to keep in mind that most dogs having a seizure do not hurt themselves and often do not require a trip to the vet. Nonetheless, if your dog has a short seizure lasting less than 2 minutes call your primary care vet, just to let them know what has happened.

If your dog is experiencing multiple back-to-back seizures or a severe seizure lasting longer than about 3 minutes, immediate veterinary attention is essential. Contact your vet right away, or call your local animal emergency vet for assistance.

What is a focal seizure, or partial seizure?

Focal, or Partial Seizures only affect a particular region of one half of your dog's brain. These seizures will be described as either simple or complex, based on your dog’s level of awareness during the seizure. While many dogs remain conscious during a simple focal seizure, consciousness is often impaired during a complex focal seizure.

What are the signs of a focal seizure in dogs?

If your dog is experiencing a simple focal seizure you may notice one or more of the following symptoms:

  • Fur standing up
  • Dilated pupils
  • Growling, barking, or moaning
  • Involuntary movements
  • Specific muscles may contract and relax
  • Signs of vision or hearing changes
  • Balance problems,
  • Hallucinations (Barking, growling or biting at nothing)

What are generalised seizures?

Generalised seizures occur across both sides of your dog's brain. If your dog is experiencing a generalised seizure they are likely to lose consciousness, and urination or defecation could occur.

What are the signs and symptoms of generalised seizures in dogs?

These seizures are characterized by movement on both sides of the body and fall into different categories:

  • Tonic: Muscle contraction or stiffening that can last from seconds to minutes
  • Clonic: Involuntary rapid and rhythmic jerking or muscle contractions
  • Tonic-Clonic: Tonic phase followed immediately by a clonic phase
  • Myoclonic: Sporadic jerks or movements typically on both sides of the body
  • Atonic (drop attacks, non-convulsive seizures): A sudden loss of muscle tone which causes the dog to collapse

Seizures can also occur in different ways. Many dogs will experience a single unexplained 'one-off' seizure during their lifetime, however other dogs can experience multiple or extended seizures.  

  • Cluster Seizures: Two or more seizures within a 24-hour period with the dog regaining full consciousness between seizures
  • Status Epilepticus: Either (a) a single seizure lasting longer than 5 minutes, or (b) a number of seizures over a short period of time without regaining full consciousness between each seizure. If your dog suffers from a Status Epilepticus seizure call your vet immediately for advice. Seizures lasting longer than 5 minutes can be life threatening.

Can a focal seizure evolve into a generalised seizure?

A focal seizure that goes on to evolve into a generalised seizure is very commonly seen in dogs. Often times the focal seizure is so short or subtle that the signs can be missed by even the most attentive pet parents. If your dog begins having a generalised seizure, try to think back to exactly what your dog was doing before it began, and let your vet know when you speak to them. A full understanding of what your dog was doing before the generalised seizure began can help your vet to diagnose the type of seizure your dog has had and what the possible cause may be.

If your dog is experiencing an emergency involving a seizure, outside of your regular vet's hours, contact Carolina Veterinary Specialists in Rock Hill. Our team is here to help your pet in an emergency late at night, on weekends or during holidays. 

Vet Care for Rock Hill Pets

Carolina Veterinary Specialists in Rock Hill, accepts new patients to our specialty services by referral only. Our emergency/urgent care service welcomes all patients.

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