Educational Articles
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Dermatomyositis is hereditary, immune-mediated disease of the skin muscles and blood vessels affecting primarily collies, Shetland Sheepdogs and mixes of these breeds. Other breeds can experience similar disease. Signs are usually first recognized in puppies but can present in young adulthood. Signs include: skin lesions (crusty erosions, patchy alopecia or ulcers) around the eyes, lips, face, ear flaps or tail tip, foot pad lesions; atrophy of chewing muscles or difficulty chewing; stiff gait and megaesophagus in severely affected dogs. Skin biopsies are diagnostic. Treatment involves treating secondary bacterial infections, reducing sun exposure, EFAs, and immunomodulatory medications including tetracycline, niacinamide, pentoxifylline, cyclosporine and corticosteroids. Prognosis varies depending on severity.
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Diabetes insipidus is rare in cats and is characterized by excessive drinking and the production of enormous volumes of extremely dilute urine. Despite drinking large volumes of water, the cat can become dehydrated from urinating so much. Increased drinking and urination are common signs of several other health conditions, so it is essential that several diagnostic tests be performed to diagnose diabetes insipidus. While the condition is rarely curable, it is usually successfully controlled.
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Diabetes mellitus results from an inadequate production of insulin from the pancreas. The primary treatment is replacement by insulin injections. The body's response to the injections needs to be regularly monitored using an at-home glucometer or continuous glucose monitoring system. Insulin must be stored and reconstituted carefully to ensure dosing is accurate. Giving subcutaneous injections of insulin can seem daunting at first, but by following the directions in this handout, it will quickly become second nature to both you and your pet.
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New medications can help regulate blood glucose levels in cats, including once-daily oral medications bexagliflozin (Bexacat) and velagliflozin (Senvelgo). Cats in the initial stages of DM may benefit most from oral diabetes treatments. This article discusses how these medications work, potential risks, and monitoring required.
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Diabetes mellitus is an inability to regulate blood glucose caused by a loss of insulin production (Type I) or inadequate insulin supply or resistance (Type II). In cats, diabetes mellitus is most often type II. This type of diabetes usually results from obesity, creating insulin resistance. Cats with type II may be treated with oral medication, but some cats may ultimately require insulin injections. Diet is also important. This article discusses various treatments and monitoring regimens.
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Diabetic ketoacidosis is a medical emergency that occurs when there is not enough insulin, or the available insulin isn’t effective enough to control blood sugar (glucose) levels. Your veterinarian needs to perform appropriate tests to diagnose this disease, as similar signs can occur with other medical conditions. Treatment involves hospitalization with IV fluids, short-acting insulin and electrolyte replacement. The most important step in prevention is ensuring careful insulin dosing and disease monitoring.
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Diabetic ketoacidosis is a medical emergency that occurs when there is not enough insulin in the body to control blood sugar (glucose) levels. It is important for your veterinarian to perform appropriate tests in order to diagnose this disease as similar signs can occur with other medical conditions. Treatment involves hospitalization with IV fluids, short acting insulin and electrolyte replacement. The most important step in prevention is ensuring proper insulin dosing is being administered.
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Cats with diabetes have the potential to go into remission where they may no longer need to receive insulin. Factors that can affect the likelihood of remission include the type of insulin given, your cat's diet, and how long your cat has been diabetic. It is important to recognize the signs of hypoglycemia, as they may be your first indication of remission.
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Discoid Lupus Erythematosus (DLE) is an autoimmune condition that causes skin sloughing particularly around the nose causing scabbing and erosions that can become infected with bacteria. It can also affect the ear flaps, genitals and rarely spread through the entire body. DLE is diagnosed by submitting skin biopsies of affected areas for histopathological analysis. As well as antibiotics to treat secondary bacterial infections, treatment involves suppression of the immune system including tacrolimus or steroid ointments/creams applied to the affected area. Some dogs will need tetracycline and niacinamide or stronger anti-inflammatories such as cyclosporine or corticosteroids. These treatments can be weaned once lesions resolve but flare-ups will likely occur, needing rechecks and repeat therapy. Sun exposure must be minimized as UV light can worsen the disease. If untreated, lesions can develop into squamous cell carcinoma.
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Discospondylitis is a bacterial or fungal infection of the intervertebral disks and the adjacent vertebral bones. It primarily affects dogs, though rarely can affect cats. It affects large breed dogs more often and generally starts clinically as back pain. The diagnosis and treatment of this condition are outlined in this handout.