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Although support-limb laminitis is a risk for any horse that is not weight-bearing lame, occurring in roughly 16% of cases, it is uncommon in foals and yearlings. [135] It usually occurs weeks to months after the initial cause of lameness, [ 136 ] and greatly increases the likelihood of euthanasia of the patient. [ 137 ]
A horse can live with laminitis for many years, and although a single episode of laminitis predisposes to further episodes, with good management and prompt treatment it is by no means the catastrophe sometimes supposed: most horses suffering an acute episode without pedal bone displacement make a complete functional recovery. Some ...
Pituitary pars intermedia dysfunction (PPID), or equine Cushing's disease, is an endocrine disease affecting the pituitary gland of horses. It is most commonly seen in older animals, [ 1 ] and is classically associated with the formation of a long, wavy coat ( hirsutism ) and chronic laminitis .
Additionally, horses with a hind limb lameness will tend to reduce the degree of leg use. To do so, some horses will reduce the contraction time of the gluteals on the side of the lame leg, leading to a "hip roll" or "hip dip" and appearance that the hip drops a greater degree on the side of the lame leg. [10]
Plants can cause reactions ranging from laminitis (found in horses bedded on shavings from black walnut trees), anemia, kidney disease and kidney failure (from eating the wilted leaves of red maples), to cyanide poisoning (from the ingestion of plant matter from members of the genus Prunus) and other symptoms.
Horses are best managed by only allowing short grazing periods—less than 1 hour since they can rapidly ingest grass, [18] or confining them to a limited turn-out area or by use of a grazing muzzle. Horses with severe IR, that have recurrent laminitis, are not recommended to return to pasture. Hay low in NSC is provided in place of pasture.
Horses with a high weight-to-foot-size ratio may have an increased chance of exhibiting symptoms of navicular syndrome, since the relative load on the foot increases. This might explain why the syndrome is seen more frequently in Thoroughbreds , American Quarter Horses , and Warmbloods as opposed to ponies and Arabians .
Potomac horse fever is currently endemic in the United States but has also been reported with lower frequency in other regions, including Canada, Brazil, Uruguay, and Europe. [4] PHF is a condition that is clinically important for horses since it can cause serious signs such as fever, diarrhea, colic, and laminitis. [5]