Population
Families with a first-degree relative with a congenital heart defect (CHD)
Design
Review
Authors
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Higher recurrence risk with maternal CHD may guide family counseling; supports revised estimates but leaves open prospective validation.
Updated recurrence risk figures for congenital heart defects indicate a substantially higher risk when the mother, rather than the father, is affected.
Nora et al. (1988) studied this question.
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