Symptoms of heart failure in dogs:

1. Acute heart failure: Sick dogs show high degree of dyspnea, frequent pulse, thin and irregular pulse. The sick dog is unwilling to move, its mouth and conjunctiva are purple, its veins are distended, and it often falls to the ground suddenly and convulses. It is often complicated by pulmonary edema, and bubbly nasal fluid flows from both sides of the nose.

2. Chronic heart failure: The disease develops slowly and can last for months or years. Sick dogs are depressed and unwilling to exercise. If they exercise even slightly, they will become tired and have difficulty breathing. The mucous membranes that can be seen in the mouth, conjunctiva, etc. are purple, the veins on the body surface are distended, symmetrical edema often occurs in the extremities, there is no heat and pain, the heart sounds are weakened, and intracardiac murmurs and arrhythmias can often be heard.

Prevention and treatment measures for dog heart failure:

1. Strengthen care: Dogs with acute heart failure should be allowed to rest quietly immediately and all training and work should be stopped. Give food that is easy to digest and absorb. Dogs that have difficulty breathing should be given oxygen immediately.

2. Enhance myocardial contractility: For dogs with acute heart failure, quick-acting and efficient cardiotonic drugs should be used for first aid.

3. Reduce cardiac load: For sick dogs with cardiac edema, appropriately limiting the amount of drinking water and salt and using appropriate diuretics will have better curative effects.