Causes of atrial septal defect in newborns

Neonatal atrial septal defect refers to a newborn baby with congenital atrial septum, which is a very serious heart disease that can affect the baby's heart development and lung health, and may even endanger the baby's life. Therefore, mothers must identify the cause of the disease in order to control the source of the disease as early as possible. The causes of atrial septal defect in newborns include viral infection, genetic factors, and are also related to altitude and gender, as described below.

1. Infection: In the first three months of pregnancy, babies born from viral or bacterial infections, especially rubella virus, followed by coxsackie virus, have a higher incidence of congenital heart disease. Others: such as amniotic lesions, fetal compression, threatened abortion in early pregnancy, maternal malnutrition, diabetes, phenylketonuria, hypercalcemia, the use of radiation and cytotoxic drugs in early pregnancy, and the mother's excessive age may cause the fetus to develop congenital heart disease.

2. Genetic factors Most congenital heart diseases are caused by the interaction of multiple genes and environmental factors.

3. Some congenital heart diseases are more common in plateau areas, and some congenital heart diseases have significant gender differences in incidence, indicating that the altitude and gender of the birthplace are also related to the occurrence of this disease. Among patients with congenital heart disease, the cause of the disease can be found in very few, but strengthening the health care of pregnant women, especially actively preventing rubella, influenza and other rubella viral diseases in the early stages of pregnancy and avoiding all factors related to the onset of the disease, has a positive significance for preventing congenital heart disease.

4. Atrial septal defect is particularly complicated in the neonatal period. It can be said that this is a relatively terrible heart disease, which has brought harm to many newborn babies and affected the baby's lung health. Everyone should pay attention to atrial septal defect, need to clearly understand the causes of the disease, and closely observe their physical changes after the baby is born. Atrial septal defect is very common. The disease brings particularly serious harm, affecting many newborns and causing abnormal heart development in children. In severe cases, it can also affect the development of children.

5. If it is a secundum type atrial septal defect, because there is often a pressure gradient between the normal left and right atria, the oxygenated blood in the left atrium will be shunted to the right atrium through the defect, and the flow of systemic blood will be significantly reduced, which will cause developmental delay in the child and physical activity will be restricted to a certain extent. Some children do not have obvious symptoms. When the oxygenated blood enters the child's pulmonary circulation, it will cause hyperplasia of the endothelium of the small pulmonary blood vessels and hypertrophy of the middle layer, inducing an increase in pulmonary artery pressure and pulmonary vascular resistance.