△ a family history of congenital heart disease. Brothers and sisters suffering from congenital heart disease at the same time, parents and children suffering from congenital heart disease at the same time the situation was quite rare, and it is very similar to the nature of their disease. If the first child born to mothers who suffer from congenital heart disease, the possibility of a second child ill about 2%; if two consecutive fetal congenital heart disease who Jie Wei, regeneration of infants with congenital heart disease may be increased to 10%. If the mothers suffering from congenital heart disease, the second-generation risk of suffering from the first disease was 10%.
△ contact with pregnant women in early pregnancy teratogenic drugs, such as lithium, phenytoin, or steroids, can lead to fetal congenital heart disease prevalence rate of 2%.
△ early pregnancy were exposed to radioactive substances, such as X-rays, isotopes such as overexposure.
△ virus infection. Women in the first 3 months of pregnancy, especially pregnant 3 weeks -8 weeks, as were virus infection, fetal prone to cardiovascular malformations. Where rubella virus is the major cause fetal congenital heart disease culprit. In addition, influenza, mumps, Coxsackie virus, herpes virus, such as congenital heart disease in children tend to be the “perpetrators.”
△ next of kin marriages. Next of kin marriage is to make the occurrence of fetal teratogenic risk factor for congenital heart disease.
△ bad habits. Pregnant women hobby “puff” or a husband-smoking, wife “passive smoking” can enable fetal malformation or congenital heart disease occur in children. The incidence of infants with congenital heart disease, infants born to smoking mothers are twice as non-smoking mothers. Husband and wife “drunken intercourse pregnancy”, fetal chromosome abnormalities will, gave birth to babies suffering from alcoholism, disease, most associated with cardiovascular abnormalities.
Early detection of children with congenital heart disease is essential for prenatal and postnatal care. 20 weeks -28 weeks of pregnancy, the use of cardiac ultrasound scanner aspect can be clearly identified whether the fetal heart “defect.” In addition, whether the fetus can be found in ascites or edema, etc., thus speculated that the fetus is suffering from heart malformations.
