Causes and Symptoms of Heart Failure in Dogs

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Causes of Heart Failure in Dogs:

1. Temporary overload of the dog's heart is the most common cause of acute heart failure, such as a dog that has been leisurely for a long time, and suddenly violent exercise; when treating a disease, the infusion speed is too fast or the amount is too much, especially for the strong myocardium. Stimulant drugs (such as calcium preparations).

2. Heart failure is often secondary to certain diseases, such as canine parvovirus, toxoplasmosis, myocarditis, various toxic diseases, chronic endocarditis, chronic nephritis, etc.

Clinical signs of heart failure in dogs:

1. Acute heart failure: The sick dog showed high degree of dyspnea, frequent pulse, thin and irregular. The sick dog is unwilling to move, the mouth and conjunctiva are purple, the veins are distended, and they often fall to the ground suddenly and have convulsions. Pulmonary edema is often complicated, and bubbly nasal fluid flows from both noses.

2. Chronic heart failure: the disease develops slowly, and the course of the disease can last for several months or years. The sick dog is depressed and unwilling to exercise. After a little exercise, it will show fatigue and dyspnea. Visible mucous membranes in oral cavity, eye conjunctiva, etc. are purple, body surface veins are engorged, extremities often have symmetrical edema, no heat and pain, heart sounds are weakened, and heart murmurs and arrhythmias can often be heard.

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