In the period of human embryo development (2-3 months in the first trimester of pregnancy), abnormalities in the local anatomy caused by the formation of the heart and large blood vessels, or the channel that should be automatically closed after birth cannot be closed (in the normal fetus) The heart is called congenital heart disease.
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| What is congenital heart disease? Can congenital heart disease patients become pregnant? |
Whether a congenital heart disease patient can conceive or not, depends mainly on the strength of the heart function. First, secondary cardiac dysfunction patients, the risk of childbirth is not large; patients with tertiary cardiac dysfunction, in principle, can not be pregnant. If the patient with grade 4 cardiac dysfunction is absolutely infertile, such as pregnancy, the pregnancy should be terminated immediately. Because the total blood circulation of pregnant women increases by more than 30%, and the uterus increases during pregnancy, forcing the diaphragm to rise and shifting the heart to the upper left, affecting blood flow and increasing the burden on the heart. During production, uterine contraction, maternal exertion, rapid heartbeat, after the birth of the fetus, the abdominal pressure suddenly drops, the placental blood circulation stops, the maternal blood flow back to the heart weight increase, the heart burden suddenly aggravated, prone to heart failure.
