What is the cause of ventricular septal defect in infants?

Nowadays, many babies suffer from some diseases when they are born, which is also something that confuses many friends. Why is this? In fact, this is mainly because when the baby is still in the mother's womb, it mainly survives by absorbing nutrients from the outside through the mother's body. There are many reasons that cause ventricular septal defect in the baby's heart. Let's take a look at them together!

The causes of ventricular septal defect in infants are as follows:

1. There is a family history of congenital heart disease. It is not uncommon for brothers and sisters, or parents and children, to suffer from congenital heart disease at the same time, and the nature of the diseases is very similar. If the mother's first child has congenital heart disease, the possibility of the second child having the disease is about 2%; if two consecutive children are born with congenital heart disease, the possibility of additional children with congenital heart disease increases to 10%. If the mother has congenital heart disease, the risk of the second generation suffering from the disease is 10%.

2. Pregnant women with diabetes who do not receive treatment or control their condition have a 2% risk of developing congenital heart disease in their fetus. If the condition is under stable control in the early stages of pregnancy, the risk decreases.

3. If pregnant women are exposed to teratogenic drugs such as lithium, phenytoin sodium or steroids in early pregnancy, the incidence of congenital heart disease in the fetus may reach 2%.

4. Excessive exposure to radioactive substances such as X-rays and isotopes in early pregnancy.

5. Viral infection. If a woman is infected with a virus during the first three months of pregnancy, especially between 3 and 8 weeks of pregnancy, the fetus is prone to cardiovascular malformations. Among them, rubella virus is the main culprit causing congenital heart disease in the fetus. In addition, influenza, mumps, coxsackie virus, herpes virus, etc. are often the "culprits" of congenital heart disease in children.

6. Marriage between close relatives. Consanguineous marriage is a high-risk factor for fetal malformation and congenital heart disease.

7. Bad habits. Pregnant women who are addicted to smoking, or husbands who smoke or wives who are exposed to passive smoking may cause fetal malformations or congenital heart disease in children. The incidence of congenital heart disease in infants born to smoking mothers is twice that of infants born to non-smoking mothers. If a couple gets pregnant after having sex while drunk, the fetus will have chromosomal abnormalities and the baby will be born with alcohol poisoning, most of which will have cardiovascular abnormalities.

The above is an introduction to the causes of ventricular septal defect in infants. After understanding these causes clearly, pregnant women must pay attention to them, and always prevent the occurrence of this disease and solve this problem from the root. Therefore, women must pay more attention when they are pregnant. If they are not careful, various problems will easily arise. They should also pay more attention to nutritional intake.