This diagnosis is made via exclusion of the above two categories, as all diagnostic tests return normally. This category encompasses genetic epilepsy, which is the most common cause of seizures in dogs. Unknown/Idiopathic seizures do not have an identifiable cause. These are diagnosed via imaging of the brain (usually MRI examination) and sometimes spinal fluid analysis. Symptomatic seizures result from structural brain disease and include conditions like tumors, strokes, malformations, inflammation, or infections in the brain. Diagnosis is made via tests like bloodwork and history information. Reactive seizures occur secondary to metabolic disease or toxin exposure (that affect a dog’s otherwise healthy brain). What causes seizures in dogs?Įxcessive excitation in the brain resulting in a seizure can happen due to the following causes: Seizures occur when there is imbalance in these mechanisms, favoring sudden excitation and increased firing of neurons. Normal neuronal activity represents a healthy balance between excitatory and inhibitory influences. Neurotransmitters may excite or inhibit other neurons. The cerebral cortex is made up of a large number of neurons that communicate with each other via chemical messengers called neurotransmitters. Seizures always indicate dysfunction in the forebrain (the cerebral cortex). How would you define a dog seizure?Ī seizure is a transient manifestation of signs due to abnormal, excessive activity of neurons in the brain. Here are signs that indicate that your dog may be experiencing a seizure and what to do in that situation. The prevalence of canine epilepsy is estimated to be between 0.5-5-7 percent. This means that as many as 1 in 20 dogs may experience a seizure in their lifetime. Epilepsy is a chronic condition characterized by recurring seizures these often occur unpredictably which presents a further challenge for owners.

For most dog owners, witnessing a beloved pet have a seizure is a scary experience. Seizures are the most commonly reported neurological problem in dogs.

Aural phase seizure