What happens when a newborn has a fast heartbeat

Newborn fast heartbeat may be due to imperfect development, myocarditis and congenital heart disease.

1. The

heart function of the newborn is not perfect yet, and the systolic and diastolic ability of the heart is weak. Therefore, after crying, feeding and other physiological activities, the heartbeat may accelerate. With the growth of the newborn age, the heart function gradually develops perfect, and the phenomenon of fast heartbeat will gradually disappear.

2. Myocarditis

is caused by viral infection in most cases. Inflammation stimulates myocardial tissue, which can lead to ischemia and hypoxia, and is prone to rapid heartbeat.

3. Congenital heart disease

Congenital heart disease is caused by infection, genetics, physical and chemical influences, etc. Due to abnormal heart function, it can cause rapid heartbeat.