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As noted above, Lafora disease is a myoclonic epilepsy, meaning that it presents with jerking motions as its primary characteristic. Generally, it comes on spontaneously after about the age of 5 years and is not gender specific. While it can afflict any breed of canine, it seems to be most often found in the Miniature Wirehaired Dachshund, Basset Hound and Beagle breeds, with the Beagle breed seeming to suffer more severe cases of it. It is progressive, gradually causing neurological changes over many years which can include ataxia (lack of muscle control), blindness and dementia.
Lafora disease is simply defined as a myoclonic (jerking) epilepsy which is inherited and generally presents as a late onset and progressive type of epilepsy.
These are the symptoms of Lafora disease in dogs that one might see in a canine who suffers from the seizures:
There are not many symptoms for this disease and they will come on suddenly as a result of some outside stimuli noted below.
Lafora disease is a rare type of inherited epilepsy in canines which can occur in any canine breed but seems predisposed to Miniature Wirehaired Dachshunds, Basset Hounds and Beagles. The Beagle breed seems predisposed to a more severe type of Lafora disease than other canine breeds and it seems that the Beagle variety of the disease is more drug resistant as well. The disease generally develops after the age of 5 years and is a gradually progressive disease which can lead to ataxia, blindness and dementia, just to name a few neurological changes for which the disease can be responsible.
Lafora disease seems to be caused by a genetic deviation which prevents the manufacturing of a specific protein which is believed to play a rather significant role in the “cleaning up” of other proteins which are no longer needed by the cells in the brain. It seems to be the buildup of these no longer needed proteins which cause the cells in the brain to experience “interference” with their function. While this is obviously a very simple description of what is happening within a very complex system, the meat of this is that fact that it's in the DNA of your family pet and there is no test currently available which is designed to detect the presence of the gene before it presents in the canine. There are recommendations about what things you might wish to avoid if you are a pet parent of a canine in any of the predisposed breeds. Here are some of the stimuli which seem to trigger the episodes:
Flashing lights - Like strobe lights or even lights from the TV in your home
Sudden movements - This is especially true of sudden movements occurring close to their heads
Your veterinary professional will require a thorough history of your pet so you might want to be prepared to provide answers to questions from your vet regarding dietary regimen, exercise activities, housing accommodations and any symptoms you have noted along with the severity, frequency and duration of those symptoms. It might be helpful to know a bit about the familial history of your canine as well. Your vet will perform a physical examination and will likely order blood work and some tissue samples for laboratory evaluation.
Even though the disease causing genetic mutation has been identified in the Miniature Wirehaired Dachshund and the Basset Hound through much research, there is no commercially available diagnostic test to identify it in your canine family member. The only definitive method of diagnosing Lafora disease in your pet will need to come from the identification of Lafora bodies found with microscopic evaluation of liver, muscle or nerve biopsies. Your vet may also require an MRI of the brain to rule out other potential differential diagnoses which are also known to cause seizures.
The treatment options for Lafora disease in dogs can include:
Lafora disease in dogs, though a rare inherited disease, is not generally fatal for your pet. It will, however, likely cause significant debilitation to your canine family member as the disease progresses. It is this debilitation which frequently brings the parents of a Lafora disease afflicted canine to a decision concerning possible euthanasia. The use of Doggles (doggy sunglasses) can help reduce the jerking in some dogs and could be an option when your canine is outside.
Balancing medication dosing, moderate levels of exercise, diets and avoidance of the known triggers of the seizures can be challenging but will be so worth it in terms of maintaining the best and safest lifestyle and environment for your canine family member. This is an area where extra measures of the three A’s -- affection, affirmation and attention -- would really help ease your pet through the inevitable progressive process of this disease.
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My dog has epileptic cluster seizures about every 4 weeks since the age of 6, shortly after neutering. This year he has started showing signs of laforas disease after his cluster seizures have stopped. The jerking motions are frequent for about a week then they stop until his next cluster. He's off all medication as he was originally given pexion. I have read all I can find on laforas. Any advice on his care would be appreciated.
Dec. 15, 2017
Lafora’s disease is an uncommon genetic condition with an age of onset between five to seven years of age; management is usually centered around dietary management (foods with a low glycemic index) and treatment or management of symptoms. You should discuss the management with your Veterinarian as each case can be different. Regards Dr Callum Turner DVM
Dec. 15, 2017
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My 12 year old chihuahua has been suffering from what we (veterinarian included) believe to be Lafora disease for about 3 years. It began with her jerking occasionally, twitching in her sleep, which would wake her and then progressed to being effected by light/sudden movement among with some other signs. She has now started to struggle to walk and I am of the opinion her sight is fading too. 2 years ago we began by treating her with Vivitonin & Gabapentin, however as her symptoms began to progress the vet changed her medications to phenobarbitone and amitriptyline. She has been on phenobabitone and amitriptyline for over a year now and I have noticed a decline in her symptoms. Are there any other medications that you are aware of that I may suggest to her veterinarian as he is at a loss as to what else to try to help her. Thank you
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