Multifactorial.: Genetic, metabolic, infectious and environmental causes can lead to cardiac birth defects. Taking Folic Acid 1-5 mg daily for your reproductive life (18-50) can prevent 75% of those defects.
Answered 6/25/2014
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Many causes: Unfortunately, there is no one specific cause. We currently state the cause is multifactorial. There are some gene defects which cause fetal heart defects, but other defects are caused by multiple factors. Please discuss this with your doctor if you are concerned about potential fetal heart defects.
Answered 11/9/2016
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