What causes irregular heartbeat in children?

If a child's body is very weak, he or she will easily get sick frequently, and it is also easy to cause uneven breathing. He or she cannot do strenuous exercise, otherwise it will cause difficulty breathing. In severe cases, he or she cannot get angry. The above situations are typical cases of irregular heartbeat in children. Let us take a look at the causes of irregular heartbeat in children.

First, what is the reason for children’s irregular heartbeat? Respiratory sinus arrhythmia: Respiratory sinus arrhythmia is the most common type of sinus arrhythmia. Respiratory sinus arrhythmia is caused by changes in the tension of the vagus nerve and sympathetic nerves in the body during the breathing process, which causes periodic and regular changes in the automaticity of the sinoatrial node. When you inhale, the sympathetic nerve tone increases and the heart rate increases. When you exhale, the vagus nerve tone increases and the heart rate slows down. The cycle of changes in heart rate is exactly equal to one breathing cycle, and the heart rhythm becomes regular when breathing stops.

Second, non-respiratory sinus arrhythmia: Non-respiratory sinus arrhythmia is less common, and the specific cause is not very clear. Some people believe that it is related to anger, emotional instability, or the use of certain drugs (such as digitalis, morphine, etc.).

Third, sinus arrhythmia related to ventricular contraction and blood ejection: Sinus arrhythmia related to ventricular contraction and blood ejection is due to abnormal ventricular contraction and blood ejection resulting in uneven blood supply to the sinoatrial node, thereby causing changes in the autonomy of the sinoatrial node.

Fourth, sinus arrhythmia induced by ectopic heart rhythm: Ectopic excitation, especially ectopic excitation originating from the atrium, can sometimes cause the excitation of the sinoatrial node to occur prematurely, followed by inhibition of the sinoatrial node, thus causing sinus arrhythmia induced by transient ectopic excitation. Medically speaking, sinus arrhythmia is divided into two categories: respiratory and non-respiratory. The former is mainly related to physiological changes, which is normal and does not require treatment.

What causes irregular heartbeat in children? Simple respiratory sinus arrhythmia is normal, but it cannot replace all examinations. If other examinations are normal, you can ignore it. The latter often occurs in certain heart diseases and is accompanied by other changes in the electrocardiogram, making it easy to detect.