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Arrhythmia in dogs

Arrhythmia in dogs is a disturbance of the heart rhythm. In the normal functioning of the heart, electrical impulses along the cardiac muscle (myocardium) are coordinated.

Due to this reduction takes place in the right sequence. Violation of this rhythm is called arrhythmia.

Causes of arrhythmia in dogs

Most often the arrhythmia is secondary, arising as a complication of the underlying disease. Often it is a disease of the heart itself, although it is also not uncommon for arrhythmia to occur in other pathologies: diseases of the gastrointestinal tract, kidneys, lungs, oncological processes in the chest.

Also arrhythmia is an invariable companion of diseases,Which are accompanied by diarrhea and vomiting, anemia and blood loss. Also, the heart rate may be disturbed in response to pain and stress. To the violation of the electrical activity of the heart muscle, such critical conditions as prolonged absence of water and hunger, supercooling or heat stroke can also lead.

Often accompanied by acute arrhythmiaSurgical pathologies (diaphragmatic hernia, curvature of the stomach), various injuries and injuries of the chest. At the same time, arrhythmia significantly burdens the course of the underlying disease, since it can lead to a decrease in cardiac output, and this disrupts the blood circulation process.

Symptoms and treatment of arrhythmia in dogsAs a result, organs and tissues are under-absorbedOxygen, and in the cells accumulate the products of metabolism, causing poisoning of the body. Also, heart rhythm disturbances can cause a sudden death of the dog. There is a breed of predisposition for arrhythmia. Most often, the disease with an indispensable companion-arrhythmia occurs in boxers and Dobermans.

This is dilated cardiomyopathy. Dogs of these breeds need to undergo cardio surveillance every year as a preventive measure.

Symptoms of arrhythmia

The danger of arrhythmia is that it can be completely asymptomatic. Often it is accidentally discovered when the dog is examined by a cardiologist or a therapist.

The presence of arrhythmia can indicate such clinical signs:

  • weakness,
  • Fainting,
  • Periodic shortness of breath,
  • Decrease in the tolerance of the physical loads habitual for the dog.

However, many dog ​​breeders do not immediately pay attention to such signs. And they should serve as a reason for an urgent call to a veterinarian and conducting various diagnostic tests.

Diagnosis of arrhythmia in dogs

The vet needs not only to recognize the arrhythmia, butAnd find its cause. To do this, the doctor examines the dog, listens to her heart and removes the electrocardiogram (ECG). It is the ECG that allows you to determine the type of arrhythmia, to assess its danger and to choose the appropriate therapy.

To determine the cause of arrhythmia will needBlood tests (biochemical and clinical). To determine the stage of the disease and the possible pathologies that accompany it, you may need a chest x-ray. If the disease of the cardiovascular system is suspected, then for a precise diagnosis the dog can undergo a cardiac examination, perform an echocardiography - ultrasound of the heart.

If the arrhythmia is not constant, then to identify itReasons Holter monitoring is carried out: a small device is attached to the dog, which writes a cardiogram for several hours. At the same time the dog lives a normal life. After that, the data is transferred from the device to the computer and the doctor analyzes them.


For the treatment of arrhythmia, the primaryThe problem of its development and try to eliminate it. There are also special drugs - antiarrhythmics, which are prescribed to eliminate precisely the symptoms of arrhythmia. To check their effectiveness, the ECG is reused.

Usually, drug therapy well eliminatesThe main cause of the disease and the attack of arrhythmia can be stopped, and new attacks - monitored. However, in some cases, there are persistent violations of the rhythm of the heart, which threaten the life of the animal.

Then the doctor chooses an effective antiarrhythmicA drug that the dog will have to consume for life or recommend to set the pacemaker to the animal, which will control the rhythm of the heart.

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