Why Do Dogs Have SeizuresThe question about why dogs have seizures is a difficult one to answer since no one knows exactly what causes seizures in dogs. A seizure is a complicated condition in which a dog may become rigid, the head may seem as if it is twisted back as if someone is pulling it back and the lips may become contorted over the teeth. The dog may fall by his side as if unconscious, at times. Although the first seizure may lead to panic, canine and feline seizureslast only for a couple of minutes and may extend up to five minutes. Only in the severest form of epilepsy known as status epilepticus, do seizures last for hours with without intervals. Extended seizures can cause brain damage and can threaten life.
Seizures are considered to be a neurological problem. However, it is also known that seizures can occur due to an underlying disease, genetic predisposition or a low seizure threshold as well. Seizures and epilepsy have become interchangeable terms over the years. Some professionals refer to epilepsy as recurrent seizures that are induced by an unknown cause. At other times, seizures that are unrelated to brain disorders or any other underlying disease are called epileptic seizures.
When the underlying cause of canine or feline epilepsy is not known, it is commonly classified as primary or idiopathic seizures. Cases where the cause is known are called secondary epilepsy.
Certain dog breeds like the German and Belgian Shepherd Dog (Tervuren), Beagle and Dachshund have a higher suspected predisposition to seizures. Boxers, Cocker Spaniels, Golden, Labrador, Wire-Haired Retrievers and Siberian Huskies are some of the other breeds where the incidence of seizures is higher.
In dogs that are more than the 4 years old the underlying cause is most likely to be found in metabolic diseases like hypoglycemia (low blood pressure), arrhythmia (abnormal rate of muscle contractions in the heart), hypocalcemia (abnormally low level of calcium in the blood; associated with low secretions of parathyroid hormone or kidney malfunction or vitamin D deficiency), brain tumors and cirrhosis (chronic liver disease).
In dogs below one year old, the most common causes of seizure are:
─ Developmental disorders like accumulation of cerebrospinal fluid in the ventricles of the brain.
─ Toxicity due to lead, arsenic, insecticides that interfere with an insect's nervous system or chlorinated hydrocarbons.
─ Viral infections like distemper and inflammation of the brain.
─ Metabolic disorders like deficiency of metabolic enzymes, liver or kidney disorders.
─ Nutritional causes like thiamine efficiency or parasitism.
Genetic causes are often suspected in dogs between the ages of one to three years. Physical trauma, of course, can occur at any age. Head injuries, brain tumors and other types of brain damage caused by cysts can cause undue pressure on different areas in the brain. When this pressure is applied on the areas responsible for balance, consciousness and muscle movements, it can cause the dog to have seizures and accompanying symptoms.
Whatever the cause, the symptoms that a dog shows during a seizure should be noted down carefully and reported to the veterinarian so that a reasonably correct cause may be found.
By Tess Thompson
References:
Sep 30, 2010
Latest news
Tracheobronchitis or kennel cough in canines is mostly caused by exposure to an infected dog or dogs. It is characterized by inflammation of the respiratory tract, which causes symptoms like a dry...
read more
Oct 24, 2010
The question about why dogs have seizures is a difficult one to answer since no one knows exactly what causes seizures in dogs. A seizure is a complicated condition in which a dog may become...
read more
Sep 30, 2010
Inappropriate urinary behavior in cats is normally associated with medical disorders like feline urinary infection. However, it is also true that many times it is a behavioral problem rather than a medical...
read more
Sep 4, 2010
Is your dog getting ants in his pants? If you are like most dog owners, the plunge of winter temperatures has dampened your enthusiasm for outdoor activity, causing angst for your cooped-up canine. Many animal behavioral specialists reported that dogs... read more Aug 29, 2010
While there are competing theories regarding why dogs and cats consume grass, a conclusive answer has yet to be supported by scientific study. Here’s a brief overview of the current speculation
Aug 25, 2010
From inclement weather to hectic travel schedules, your pooch or kitty has probably endured some stress as the holidays wrapped up and the full, blustery force of the winter season kicked in. Jan 17, 2010
|
  |
Website Directory of Pet Products,
Pet Services & Pet Information!
Pet Services & Pet Information!
