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Cavalier King Charles Spaniels are prone to Syringomyelia

Syringomyelia in Dogs Targets Specific Breeds

Home » Blog » Syringomyelia in Dogs Targets Specific Breeds
March 11, 2021 by Sharon Seltzer
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Table of Contents[Hide][Show]
  • SM and the shape of a dog's skull
  • Other dog breeds prone to Syringomyelia
  • The symptoms of Syringomyelia+−
    • Here are the first symptoms pet owners' notice:
    • These are the more subtle signs of SM:
    • Late-stage symptoms
  • Treatment options
  • The prevention of SM
  • The Cavalier puppy I know+−
    • Want to read more?
Cavalier King Charles Spaniels are prone to Syringomyelia

Syringomyelia in dogs is a rare neurologic disorder that targets only a handful of breeds. Its primary victims are Cavalier King Charles Spaniels and according to experts if you have a Cavalier, they’re likely to have some level of the condition.

Cavalier King Charles Spaniels are special dogs and it’s hard not to fall in love with them. Just take a look at their soulful faces and big brown eyes and you’ll know what I mean. The first Cavalier I met was an adorable chocolate brown puppy a friend adopted. He had been sent to a rescue group because he was deaf.

That deafness is one of the one of the symptoms of Syringomyelia (SM). The condition causes a range of health problems that include: neck pain, leg weakness, facial paralysis and constant head shaking or scratching.

To fully understand this disease, it’s important to learn about your dog’s brain.

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SM and the shape of a dog’s skull

The key to SM (also known as occipital dysplasia or caudal occipital malformation) lies in the shape of your pet’s skull.  It’s also the reason Cavalier’s are predisposed. The breed has an abnormality in the shape and size of their skull which makes it too small to properly house the brain.

The abnormality doesn’t affect a dog’s intelligence, but the shape makes it harder for a liquid called cerebrospinal fluid (CSF) to work.

Cerebrospinal fluid encases a dog’s brain and spinal cord. It’s responsible for providing the area with nutrition, insulation and lubrication. The body also relies on CSF to remove waste.

The size of a Cavalier’s skull prevents CSF from flowing easily through the brain and down into the spine. It forces CSF to flow through a smaller than normal space. After time the fluid backs up, causing painful pockets and swelling in the spine and neck.

Because it takes time for this back up to happen, dogs show the first signs of SM between the ages of 6 months to 3-years-old.

Other dog breeds prone to Syringomyelia

Papillon dogs are prone to Syringomyelia
Depositphotos

Cavalierhealth.org says that SM was first identified in Cavaliers in the 1990s.

The condition also strikes these dog breeds:

Bichon Frise’

Affenpinscher

Boston terriers

Bull terriers

French bulldogs

Havanese

Maltese

Miniature Dachshunds

Miniature Poodles

Papillons

Pomeranians

Pugs

Shih Tzus

Staffordshire bull dogs

Yorkshire terriers

The symptoms of Syringomyelia

Here are the first symptoms pet owners’ notice:

Head scratching – A dog scratches or rubs their head excessively. It’s usually seen while a dog is walking on a leash. Researchers think this is due to pain or sensitivity in a dog’s neck when they move.

Air scratching / Phantom scratching – This form of scratching looks like its being done in mid-air. The dog never actually touches their body. It’s seen most often when a dog is walking or playing.

Pain – This primary symptom appears when a dog seemingly yelps or cries for no apparent reason. The episodes come and go or can happen when the weather changes.

Leg weakness / Lack of coordination – Some dogs develop a limp or have trouble getting on and off the furniture or the floor. Pet owners also notice their dog compulsively licking at their paws or legs.

These are the more subtle signs of SM:

Restlessness – A dog constantly shifts positions while lying down and can’t seem to get comfortable.

Head shaking and Lip-licking – Dogs shake their heads and ears or yawn excessively. Others continually lick their lips. It’s believed this symptom is a dog’s way of trying to clear pressure in their head.

Head rubbing – Another technique dogs use to relieve pressure is to rub their head or face into the floor.

Digging – Some dogs obsessively dig into the carpet or the sofa to soothe pain and pressure.  

Late-stage symptoms

As SM progresses, it can cause an array health issues. Some dogs have problems with their eyesight while others develop extreme stiffness in the neck, back or limbs. Dogs are also prone to head tremors and seizures.

Treatment options

Cavalier King Charles Spaniels are prone to Syringomyelia

Treatment for SM is limited, but veterinarians have made advancements in the past few years.

First an MRI is ordered to diagnose the condition. This imaging test is the most precise way to confirm SM. It enables a veterinary neurologist to locate the specific areas in the brain and spine where fluid is backing up or flowing abnormally.

If a dog is diagnosed with a mild case of SM, corticosteroid medications like Prednisone are prescribed to reduce inflammation. Veterinarians also recommend the use of strong antacids because of their ability to reduce CSF.

In more severe cases, the buildup of fluid is surgically drained from the spinal cord. And in extreme cases surgery is performed on the vertebrae and skull to relieve pressure.

The prevention of SM

Syringomyelia appears to get worse with each generation of Cavaliers once the condition has been diagnosed in a family line. Dogs tend to show signs of illness at earlier ages as well. 

To prevent this from happening, national and international dog associations have created an official breeding protocol for Cavalier King Charles Spaniels.  The protocol recommends that susceptible dogs undergo an MRI and if SM is confirmed, they are removed from breeding future litters.

The Cavalier puppy I know

Cavalier King Charles Spaniel puppy

At this point in time, the adorable brown Cavalier puppy my friend adopted is healthy and doing well. Deafness is his only symptom of SM. He’s learned to understand sign language and is having a happy puppy life.

Want to read more?

When Your Dog Needs An MRI: What The Test Reveals

7 Of The Most Common Spinal Cord Diseases In Dogs

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About Sharon Seltzer

I’m a blogger, professional writer and co-founder of the Heaven Can Wait Animal Society. I’m also a pet mom who’s raised 9 dogs, 6 cats and lots of other critters. When my dog Sophie became paralyzed in 2008, it was a lonely experience. It took months to find all of the resources to help her live a quality life. My mission is to share those services with other pet owners and to teach people how to care for a disabled dog.

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Dog Wheelchair LIFE teaches pet families how to care for their paralyzed dog. This is not a medical site and I am not a veterinarian. I am a blogger and pet mom who was the caretaker for Sophie, a paraplegic dog. I’m also a co-founder of the Heaven Can Wait Animal Society in Las Vegas, NV and an animal writer who has contributed to websites and magazines.

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