Ascariasis
Ascariasis is a disease affecting dogs caused by the intestinal parasitic roundworm (or Ascaris lumbricoides). Roundworms are often quite large — up to 10 to 12 centimeters in length — and can be present in extremely high numbers within an infected animal. When they are found in a dog’s body, it can lead to abdominal swelling (distension), colic, gastrointestinal issues and even intestinal rupture.
The condition or disease described in this medical article can affect both dogs and cats. If you would like to learn more about how this disease affects cats, please visit this page in the PetMD health library.
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Salmon poisoning disease (SPD) is an often fatal condition, occurring when a dog eats raw salmon that is infected with the Neorickettsia helminthoeca parasite. This disease typically begins in the tissues of the small intestine, where it causes hemorrhaging. It gradually becomes systemic, invading the entire body.
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Salmonellosis in Dogs
Salmonellosis is an infection found in dogs caused by the Salmonella bacteria. It often leads to disorders, including gastroenteritis, spontaneous abortions, and septicemia. This bacterial disease is also zoonotic, meaning it can be transmitted to humans.
Salmonellosis affects both dogs cats. If you would like to learn how this disease affects cats, please visit this page in the PetMD health library.
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Cirrhosis and Fibrosis of the Liver
The liver is the largest gland in the body, and one of the most important for overall health. One of the liver’s many functions include production of bile, a fluid substance involved in the digestion of fats. The gallbladder, situated in the concave of the liver, acts as a storage unit for bile, releasing the concentrated bile into the common bile duct as it is needed for fat digestion. The bile ducts begin within the liver itself as tiny channels to transport bile. The ducts join together to form larger bile ducts and finally enter the extrahepatic bile duct, or common bile duct, which empties into the upper small intestine. This system of bile ducts is known as the biliary tree.
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Second-degree Atrioventricular Block - Mobitz Type 1 in Dogs
The sinoatrial node (SA Node, or SAN), also called the sinus node, is the initiator of electrical impulses within the heart, triggering the heart to beat, or contract, by firing off electrical surges. The atria, the two upper chambers of the heart that receive and send out blood, are prompted into action by the SA node’s electrical impulse, which then activates the atrioventricular node (AV node). The AV node conducts the normal electrical impulses from the atria to the ventricles, coordinating the mechanical activity so that the atria have forced the blood down into the ventricles before the ventricles contract to send the blood out into the body through the pulmonary artery and aortic artery.
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Abnormally High levels of Parathyroid Hormone due to Chronic Kidney Failure in Dogs
Parathyroid glands are the small endocrine glands that produce parathyroid hormone (PTH). The major function of the parathyroid gland is to control concentrations of calcium in the blood and within the bones. This is not to be confused with the thyroid gland, which has a different function.
Secondary hyperparathyroidism refers to the excessive secretion of parathyroid hormone due to chronic kidney failure. The major cause of secondary hyperparathyroidism is absolute or relative lack of calcitriol production – a form of vitamin D that stimulates the absorption of calcium in the intestines, calcium resorption in bone, and promotes the effectiveness of the parathyroid hormone in aiding bone resorption. Low concentrations of calcium also play a role in increased levels of PTH in blood.
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Status Epilepticus in Dogs
Status epilepticus, or epilepsy, is a neurological condition that results in recurrent seizures in dogs.
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Idiopathic and Genetic Epilepsy in Dogs
Epilepsy is a brain disorder that causes the dog to have sudden, uncontrolled, recurring physical attacks, with or without loss of consciousness. This may sometimes occur for unknown reasons (idiopathic) or due to genetic abnormalities. However, idiopathic epilepsy is often characterized by structural brain lesions and is more likely seen in male dogs. If left untreated, the seizures may become more severe and frequent.
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Separation anxiety in dogs usually are destructive or otherwise inappropriate when an owner leaves the pet or is not in close proximity. Behaviors that may be seen include vocalization, destroying objects, digging or even depression. However, these behaviors may also be due to other conditions or environmental cues. Therefore, it is important for the behaviorist or veterinarian to obtain the history of the dog before attributing separation anxiety as the primary or sole cause of the behavior.
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Retinal Detachment in Dogs
The retina is the innermost lining of the eyeball. Retinal detachment refers to its separation from the back of the eyeball. This can be caused by a variety of genetic and non-genetic factors, and in some cases is a result of a more serious underlying medical condition. There are some forms of treatment, although retinal detachment may lead to permanent blindness.
The condition described in this medical article can affect both dogs and cats. If you would like to learn more about how retinal detachment affects cats, please visit this page in the PetMD health library.
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