Our CHD prevalence has decreased with age trend of birth was 6.87 per thousand live births (Shanghai), 3.1 preschool children in 1000 (Cheng
Our CHD prevalence has decreased with age trend of birth was 6.87 per thousand live births (Shanghai), 3.1 preschool children in 1000 (Chengdu), 2.39 school-age children% ~ 2.8 per thousand (Hefei, Fuzhou), 3.1 middle school students and primary school (Harbin)%, 1.08 per thousand adults (Guangdong). However, in the plateau area of primary and middle school students in Qinghai, the prevalence rate of up to 8.8 per thousand to 13.7 per thousand. American born infant survival prevalence rate of about 8 per thousand, stillbirth prevalence rate of 80 per thousand, the prevalence rate of adults was 2.4 per thousand to 2.8 per thousand (Flemming John, Chicago).
In the period of embryonic development (early pregnancy 2-3 months), due to formation of disorder of the heart and great vessels of the local anatomical abnormalities, or after birth should not automatically shut down the closed channel (in normal fetal heart), known as congenital heart disease. In addition to individual ventricular septal defect at the age of 2 to heal the opportunity, the vast majority of surgical treatment. In clinical heart failure, cyanosis and dysplasia as the main manifestation.
Prevention of congenital heart disease:
1 in the early stages of pregnancy (3 months ago) to stop in front of the computer, microwave ovens and other strong magnetic field place to sit too long time, because when the fetus is not stable in various organs are still forming stage, which is likely to cause the child with congenital heart disease.
2 do not touch the pet, because the pet body bacteria and microorganisms may also cause a child congenital heart disease.
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