Nervous System Disorders in Dogs and Cats
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Cerebellar Hypoplasia in Kittens 
 
Epilepsy
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Cerebellar Hypoplasia in Kittens
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General Information:
Cerebellar hypoplasia is a defect in the brain of young kittens that results in a loss of fine-motor coordination.  Affected kittens have trouble walking and maintaining their balance.  It is caused by infection of the kittens with feline distemper virus shortly after birth or infection while the kittens are still in the mother’s uterus.
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There is no known cure for cerebellar hypoplasia.
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Epilepsy
General Information:
Epilepsy is relatively common in dogs, but much less common in cats.  Nerve cells in the brain function by transmission of electrical impulses.  Epilepsy is a sudden, excessive discharge of electrical energy in groups of brain cells, causing a seizure or convulsion.  Why this spontaneous discharge occurs is not known, but in many cases the condition is hereditary in dogs.
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Epilepsy usually becomes apparent between 6 months and 5 years of age.  Nearly all breeds, including mixed breeds, have affected.
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Seizures seldom last more than 5 minutes, but to the unprepared observer, they are extremely alarming and seem to last much longer.  Handling the mouth of an animal should be avoided because you may be accidentally bitten.  Most seizures occur in three distinct phases.  The first phase, which generally lasts less than 1 minute, is called the aura and is the period before a seizure during which the affected animal seems overly anxious.  It may scramble from behind a piece of furniture or jump down from a chair with its eyes widely dilated.  The second phase is the actual seizure.  Each attack may be different and can range from a mild muscle spasm to a severe convulsion with defecation and urination and loss of consciousness.  The third phase occurs immediately after the seizure and is characterized by confusion, weakness, and rapid breathing.  The severity of this phase depends on the severity of the convulsion.
Temporary blindness and total exhaustion may follow a severe episode.
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Status epilepticus is a constant seizure state.  Each seizure seems to stimulate another, resulting in one seizure immediately following another.  Since this condition can be fatal, call the veterinarian immediately!  Status epilepticus is a medical emergency!
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Medication for epilepsy is not given to cure but rather to control the disease.  Sucessful therapy is measured by the ability to decrease the frequency, duration, and severity of individual seizures.
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Treatment of epilepsy is usually not begun unless multiple seizures occur and until a pattern is observed and other causes of seizures are ruled out.  Many epileptic dogs become worse if seizures are not treated.  Determination of proper dosage may take weeks or months in order to find the minimum amount to prevent all seizures, and frequently more than one medication is necessary.  Because of the delicate balance of the dosage, missing treatments may cause a seizure.  Even a well-controlled case may have an occasional mild seizure.  Do not become discouraged if a seizure occurs.  Call your veterinarian to discuss changes in dosage or medication.  Medication is often required for the remainder of the pet’s life.
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Notify your veterinarian if any of the following occur: