Congenital Myasthenic Syndrome, CMS

Neuromuscular

This condition is characterized by episodes of exercise intolerance and weakness.

  • Signs and symptoms

    Affected puppies can usually play or run for up to a half hour, after which their strides get progressively shorter and the dog collapses. After resting, dogs show no ill effects.

    Signs first appear in puppies, typically between 3-5 months of age.

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  • Diagnosis

    Genetic testing, blood work, neurological tests, and clinical signs can be used to diagnose this condition.

  • Treatment

    CMS is a lifelong condition and their overall quality of life may be impacted. While some dogs with CMS lead relatively normal lives, the majority of puppies in this research study were euthanized.

  • What to do if your dog is at risk

    Actions

    • Minimizing intense exercise may help reduce clinical signs. Please follow the recommendations from your veterinarian.

  • Genetic Information

    This mutation was first described in Golden Retrievers.

    This disease is inherited in an autosomal recessive manner, meaning that affected dogs must have two copies of the mutation to show clinical signs.

    Gene names:

    COLQ ‐ chr

    Inheritance type:

    recessive

  • Breeds affected

    This health condition affects the following breeds

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