A 31-year-old member asked:
what causes a baby to get tetralogy of fallot?
2 doctor answers
Dr. Danae Steele answered
30 years experience Maternal-Fetal Medicine
We don't know: In most cases tetralogy of fallot is thought to be "multifactorial", meaning that there are possibly genes, and also environmental factors which might increase a child's potential of having the defect.
Answered on Sep 23, 2016
Dr. David Malpass answered
32 years experience Pediatric Cardiology
Multiple factors: It is still unclear what causes tof. There are both genetic and environmental factors that appear to increase the risk: poor maternal nutrition; alcohol consumption; maternal age > 40; maternal diabetes; maternal rubella; genetic disorders/syndromes (down syndrome or digeorge syndrome); parent or previous child with tof; maternal pku; maternal use of fluconazole, tegretol, or dilantin.
Answered on Oct 26, 2013
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