Heart Disease
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Humans don't have a monopoly on heart disease - our furry friends also are susceptible to a wide range of cardiovascular conditions. Smaller breed dogs, in particular, are more likely to develop heart disease, including heart "murmurs."Heart murmurs occur when the animal's heart function has deteriorated, creating an abnormal blood flow within the heart's chambers. The condition may be congenital, meaning the animal was born with the problem, or else it can develop as the result of disease and aging. Some conditions aren't very serious; others will progress rapidly, causing congestive heart failure and death. [...]
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Most people are either unfamiliar with the term "shunt" or are used to its application as a treatment to drain excess fluid from the brain following a stroke.There is another type, however, that can occur in animals, including dogs. Specifically, a portosystemic shunt is an abnormal connection between the hepatic portal vein and the rest of the circulatory system. This vein connects the gastrointestinal tract to the liver. This abnormal connection in turn causes blood from the gastrointestinal tract to bypass the liver, depriving it of oxygen and vital nutrients. When this occurs, the liver is unable to completely perform its own vital functions, including assisting with the body's metabolism and eliminating toxins from the system. The final effect is to expose the affected animal's body to toxic byproducts from its own digestive system. [...]
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There are several different kinds of heart diseases that can affect puppies and dogs. Just like with people, some dogs appear more likely to get these disease based on their genetic make-up as well as their lifestyle and nutrition. In some cases heart disease are more problematic within the breed as a whole and reputable breeders continue to carefully select breeding pairs to avoid any problems with passing on the condition to future generations.One type of heart disease that can happen in almost any breed of dog is a congenital heart condition. This is a heart malformation or disease that is present when the puppy is born. It can be genetic or be caused by a birth defect or injury or trauma when the puppy was developing. Often females that are stressed through disease, poor nutrition or injury during pregnancy are far more likely to have puppies with congenital conditions. [...]
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Dirofilaria immitis is the medical term for the infection we all recognize as heartworm. The first cases of feline heartworm were reported in Brazil in 1921, since then it has been reported around the world. It is interesting to note that feline heartworm is reported more frequently in areas where dogs with heartworm are reported as well. However the number of reported feline cases remains lower than canine cases in these high-risk areas. Furthermore, the male cat is more susceptible to this disease than the female. Also the presenting symptoms and diagnostic approaches are different in dogs and cats reported to have contracted this disease.Heartworm is passed on to cats by infected mosquitoes that carry the L3 Larvae. When the larvae mature and become adults they develop into worms and these parasites attach to their host and live within the body. [...]
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Heart Disease
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