Educational Articles
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Otitis interna is a serious condition that can cause significant signs in your cat, including drooling from the side of the mouth, difficulty eating, inability to blink, and drooping eyelids, lips, and nostrils on the affected side. Treatment may involve long-term medications if the underlying cause can be identified, such as bacterial or fungal infection. Less commonly, surgery may be needed. Many cats will respond to treatment and recover well.
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This handout discusses the anatomy of the cat’s ear canal, how to safely clean your cat’s ears to prevent ear infections, and how to apply topical ear medications if needed.
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A joint luxation is a dislocation or complete separation between the bones that normally move back and forth to form a joint. Subluxation refers to a partial separation of the joint. The most commonly subluxated joint in cats is the hip, although any joint can be affected. Your veterinarian may suspect a joint subluxation based on a history of trauma and physical examination findings such as pain and limping. A radiograph is necessary to definitively diagnose a joint subluxation. In many cases, the joint can be reduced or replaced to its original orientation by a procedure called a closed reduction, with a good prognosis if treated immediately. Surgery correction, however, may be needed.
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This handout outlines the use of disease-modifying osteoarthritis drugs (DMOADs) in cats, specifically the use of polysulfated glycosaminoglycans (PSGAGs). The rationale for their use, potential side effects, and treatment expectations are explained.
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Keratoconjunctivitis sicca (KCS) is also commonly referred to as dry eye. It is an uncommon eye condition in cats. It results from inadequate production of the watery portion of the tear film by the lacrimal gland or the third eyelid gland. Cats with KCS have painful, red, eyes with squinting. Corneal ulcers may also be present. Chronic cases have scarring on the cornea, impairing vision. The prognosis for cats diagnosed with KCS is good with long-term treatment and diligent monitoring.
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The lacrimal duct is part of the nasolacrimal system, a series of narrow tubes that allow tears to drain from the eye into the nose and mouth. This duct can sometimes become blocked or fail to develop properly, resulting in tears overflowing and potentially staining the face below the eye. The clinical signs, diagnosis, and treatment options for the condition are explained in this handout.
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Leaky gut syndrome refers to an increase in the permeability of the intestines. This condition may be caused by any significant insult to the intestines. Acute cases of leaky gut may be caused by infection, trauma, toxins, or medication overdoses. Chronic cases, in contrast, may be caused by food allergies, long-term NSAID use, or other causes. Your veterinarian will perform diagnostic tests to determine the underlying cause of your cat’s intestinal disease and treatments will be targeted at the specific underlying disease that is causing your cat’s leaky gut.
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Lenticular sclerosis is the term for a bluish, transparent haze that develops in the lens of the eye in middle-aged to senior cats. Vision does not appear to be significantly affected. While the exact mechanism is poorly understood, it appears that the lens gradually becomes denser or harder with age. There is no specific treatment for lenticular sclerosis, nor is treatment necessary.
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One particularly dangerous type of foreign body in cats is a linear foreign body: a long, thin object such as string, yarn, or tinsel. If one end of the linear foreign body becomes lodged in the gastrointestinal tract, intestinal perforation may occur due to bunching up of the intestines. The most common signs of a linear foreign body include vomiting, anorexia (refusal to eat), dehydration, and lethargy. If your veterinarian suspects a linear foreign body, your cat will need an exploratory laparotomy (abdominal surgery).
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The liver is an important organ necessary for controlling many different body functions. Signs of liver disease include increased drinking and urination, abdominal swelling, jaundice, digestive upset, and weight loss. Because of the varied actions of the liver there are several blood and urinary tests that can reveal liver disease. Imaging can be used to determine if there is a change in liver size or irregularity in liver tissue. Ultimately, a liver biopsy is often needed to definitively diagnose liver disease. A biopsy may be obtained by fine needle aspiration through the body wall or a surgical biopsy may be necessary. Anesthesia in a cat with liver disease will carry increased risk but often is relatively low. Treatment of liver disease depends on the diagnosis, but sometimes specific diets are recommended to help manage or slow the disease.
