Sinus tachycardia of the heart: what is it?

The sinus node is a cluster of nerve cells that send signals to the heart muscle tissue, causing it to contract. It is located in the area above the right atrium.Sinus tachycardia of the heart what is itSinus tachycardia of the heart - what is it? Photo: Getty Increased sinus tachycardia is not always associated with heart disease, it can have other causes:

  • Stress state. Nerve strain causes excitation of sinus cells. Attacks of heart palpitations can become chronic in case of constant stress.
  • Violation of the thyroid gland. It is accompanied by the release of a hormone that affects the heart rate.
  • Intoxication of the body. May be the result of alcohol, nicotine, drugs. The same effect is exerted by infectious diseases accompanied by fever, anemia, and pressure reduction.
  • After physical activity. Also, this symptom may occur when lifting out of bed after a long time in a horizontal position.

Cardiogenic manifestations of sinus tachycardiaof the heart are more dangerous than single short-term physiological disorders. They may indicate heart failure. The pathology is manifested by a feeling of palpitations, dizziness, and anxiety. But the correct diagnosis can only be made by undergoing an ECG.

Causes of sinus tachycardia of the heart in a child

A newborn's heart rate differs from that of an adult - a pathology is considered to be an increase in rhythm over 170 beats per minute. It can be caused by various factors:

  • emotional overstrain, fatigue;
  • fear;
  • temperature drops or stuffy room;
  • care handling, swaddling;
  • physical activity.

Most often, these manifestations are not dangerous andpass with time. If the child has a heart disease, then the rapid rhythm may be one of its symptoms. But in this case, the pathology will manifest itself in a state of physical and emotional rest. When the symptom occurs once, then it is most likely caused by external factors. If the rhythm is constantly increased, you should consult a doctor. Timely treatment will help avoid the occurrence of heart failure.

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