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 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.