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Symptoms of Coonhound Paralysis in Dogs

Source: PetWave, Updated on July 16, 2015
Coonhound Paralysis

Symptoms of Coonhound Paralysis

Coonhound paralysis can occur in dogs of any breed, age or gender, but it seems to show up more frequently in outdoor dogs and hunting dogs after contact with a raccoon. Symptoms develop quickly and typically include many or most of the following:

  • Progressive hind end weakness of unknown origin that worsens over 5 to 10 days
  • Changes in vocalization (bark becomes raspy and hoarse due to vocal cord damage)
  • Stiff, stilted gait; progresses to affect all limbs
  • Loss of leg reflexes
  • Loss of muscle tone
  • Severe muscle wasting (atrophy)
  • Rapid progression to complete flaccid paralysis in all four legs
  • Hypersensitivity to touch (hyperesthesia); vigorous objection even to very light contact or mild stimulation
  • Sensory function remains intact in almost all dogs, including the sensation of pain

One of the most confusing aspects of this condition for owners is that most affected dogs continue to urinate and defecate normally and can still wag their tails. Most also can chew and swallow normally and do not have pupillary or other eye abnormalities. In a very few cases, the facial nerves become damaged, although appetite and thirst almost always are unaffected. The paralysis generally worsens for several days once clinical signs appear, and then stabilizes. Most dogs will develop relatively few symptoms other than limb paralysis and will eventually recover spontaneously, without treatment and without permanent neurological damage. Unfortunately, respiratory paralysis occasionally occurs, and some dogs become severely debilitated. In those cases, hospitalization with mechanical respiratory support may be essential to the dog’s survival.

Dogs at Increased Risk

“Coonhound” is a term loosely applied to a number of different hunting dogs, most of which live in the southern United States. Few of these are recognized as specific breeds by any official canine organization. Outdoor dogs allowed to roam freely and hunting dogs in areas frequented by raccoons are at an increased risk of developing Coonhound paralysis, although it can occur in other dogs as well, for no apparent or identifiable reason.

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