Educational Articles
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Ear infections are less common in cats than dogs, and it is essential to determine the underlying cause. Ear mites are the most common cause, but tumors or foreign bodies may also be present. Your veterinarian will need to examine your cat and likely perform tests to determine the best course of treatment. The prognosis is good if the underlying cause is diagnosed and treated.
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Infection of the external ear canal (outer ear infection) is called otitis externa and is one of the most common types of infections seen in dogs. Nearly all ear infections that are diagnosed and treated can be successfully managed. However, if an underlying cause remains unidentified and untreated, the outcome is less favorable.
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The ear mite is a surface mite that lives on cats, dogs, rabbits, and ferrets. It is usually found in the ear canal but it can also live on the skin surface. Mites are barely visible to the naked eye. Clinical signs of infestation vary in severity and may include ear irritation, leading to scratching at the ears or head shaking, dark waxy or crusty discharge from the ear, areas of hair loss resulting from self-trauma, a crusted rash around or in the ear, and an aural hematoma. Your veterinarian will advise you about which insecticidal products are suitable. Your veterinarian may want to re-examine your pet to ensure that the mites have been eliminated after the initial treatment has been performed.
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Eclampsia in cats is a rare emergent condition of hypocalcemia that generally occurs one to four weeks after giving birth but can occur before. Risk factors include a poor diet, abnormal parathyroid gland, and calcium supplementation during pregnancy. Signs of eclampsia start as restlessness, panting, and stiffness and can progress to disorientation, tremors, inability to walk, and convulsions. Treatment includes intravenous fluids, careful intravenous calcium supplementation, and other supportive medications followed by oral supplementation and weaning kittens as soon as possible or supplementing their diet with milk replacer.
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Eclampsia in dogs is an emergent condition of hypocalcemia that generally occurs one to four weeks after whelping but can also occur shortly before giving birth. Risk factors include a poor diet, small breed dogs, abnormal parathyroid gland, and calcium supplementation during pregnancy. Signs of eclampsia start as restlessness, panting, and stiffness and can progress to disorientation, tremors, inability to walk, and convulsions. Treatment includes intravenous fluids, careful intravenous calcium supplementation, and other supportive medications. This is followed by oral supplementation and weaning puppies as soon as possible or supplementing their diet with milk replacer.
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Ectopic cilia can be an irritating eye problem for many dogs. Growing abnormally through the conjunctiva (the pink part of the eye), they come into contact with the cornea and can cause chronic discomfort to the eye and corneal ulceration. Surgery is necessary to help to correct the problem and help dogs live a more comfortable life. The prognosis for surgical correction of this condition is generally good.
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An ectopic ureter is an anatomical defect that is present at birth in some dogs. In a dog with ectopic ureters, the ureters do not attach to their normal location in the bladder. Dogs with ectopic ureters may dribble urine or be prone to frequent bladder infections. Signs, diagnosis, treatment, and prognosis are discussed.
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Egg binding is not uncommon in birds and may be resolved easily if treated early; if not, the bird may become critically ill. Egg binding occurs when the female bird is unable to expel the egg from her body. Egg-bound birds are usually weak, not perching, often sitting low on the perch or on the bottom of the cage and are straining as if trying to defecate or to lay an egg. Treatment varies depending upon how sick the bird is, as well as the location of the egg and the length of time the bird has been egg bound.
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Egg yolk peritonitis is commonly diagnosed in laying hens when yolk from a developing egg or an incompletely shelled or ruptured egg is deposited within the body cavity rather than passing normally from the ovary, into the oviduct, and then out of the body as a fully shelled egg. The yolk material that is released into the coelomic cavity causes inflammation of the peritoneum and typically the development of fluid within the coelom. Affected birds will often stop laying, become less active, have distended abdomens, and have difficulty breathing. Veterinarians diagnose egg yolk peritonitis through a combination of physical examination findings, blood testing, and imaging with radiographs or ultrasound. Treatment is supportive, with supplemental feeding, anti-inflammatory medication, antibiotics, hormones to prevent further egg laying. With more advanced cases, oxygen therapy and fluid drainage from the abdomen may be necessary.
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Ehrlichiosis is a tick-borne bacterial (Ehrlichia) infection spread by the brown dog tick found in many areas of North America. There appear to be three stages of disease: acute, sub-clinical, and chronic or clinical. Abnormal findings on initial lab work include thrombocytopenia, anemia, hyperglobulinemia, and proteinuria. In-clinic ELISA tests can be used to screen for exposure but will be negative if the infection is new. Blood can be sent for PCR testing to demonstrate infection and to determine the species of Ehrlichia. Prevention includes minimizing exposure to ticks and use of tick prevention medication regularly.
