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Canine cognitive dysfunction (CCD) is a disease prevalent in dogs that exhibit symptoms of dementia or Alzheimer's disease shown in humans. [1] CCD creates pathological changes in the brain that slow the mental functioning of dogs resulting in loss of memory, motor function, and learned behaviors from training early in life.
Symptoms include sudden permanent blindness, but may occur more slowly over several days, weeks or months, [3] dilated pupils. Pupillary light reflexes are usually reduced but present; the slow phase mediated by melanopsin in retinal ganglion cells is retained.
Progressive retinal atrophy (PRA) is a group of genetic diseases seen in certain breeds of dogs and, more rarely, cats. Similar to retinitis pigmentosa in humans, [1] it is characterized by the bilateral degeneration of the retina, causing progressive vision loss culminating in blindness.
Diagnosis and management of dogs with degenerative myelopathy: A survey of neurologists and rehabilitation professionals. J Vet Intern Med. 2023 Sep-Oct;37(5):1815-1820. doi: 10.1111/jvim.16829 ...
There are many other signs, but one thing families notice first is that dogs urinate in the house. 7. Cushing's Disease, Myelopathy, and Other Less Common Causes ... Even dogs with dementia ...
It is a congenital heart disease in dogs. There usually are no signs in dogs except for a heart murmur. However, a large defect can result in heart failure or in pulmonary hypertension leading to a right-to-left shunt. [49] Atrial septal defect* is a hole in the division between the heart atria (upper chambers of the heart). It is an uncommon ...
Less commonly, dog families will notice odd body language like crouching, holding the ears back, “whale eyes,” which is kind of like a sideways glance where you can see the white of the eye ...
For dogs that are affected with Lafora disease, common symptoms are rapid shuddering, shaking, or jerking of the canine's head backwards, high pitched vocalizations that could indicate the dog is panicking, seizures, and – as the disease progresses – dementia, blindness, and loss of balance. [citation needed]