5 doctors weighed in:

What are the chances of having more then one child with hypoplastic left heart syndrome?

5 doctors weighed in
Dr. James Ferguson
Pediatrics
2 doctors agree

In brief: Tiny

The genetic influences on heart formation/defects are complex and located on several separate chromosomes.
The risk of you having another kid with ANY heart defect (there are lots of them) is about 4%, while that of the same defect is incredibly small.

In brief: Tiny

The genetic influences on heart formation/defects are complex and located on several separate chromosomes.
The risk of you having another kid with ANY heart defect (there are lots of them) is about 4%, while that of the same defect is incredibly small.
Dr. James Ferguson
Dr. James Ferguson
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Dr. Nikolaos Zacharias
Obstetrics & Gynecology - Maternal Fetal Medicine
1 doctor agrees

In brief: 2-6% with 1-2 sibs

Multifactorial inheritance usually is quoted for hlhs, with a 2% recurrence risk if one prior affected sibling and a 6% recurrence risk with two prior affected siblings.
Rarely an autosomal recessive form can be seen with 25% recurrence risk from the same parents.

In brief: 2-6% with 1-2 sibs

Multifactorial inheritance usually is quoted for hlhs, with a 2% recurrence risk if one prior affected sibling and a 6% recurrence risk with two prior affected siblings.
Rarely an autosomal recessive form can be seen with 25% recurrence risk from the same parents.
Dr. Nikolaos Zacharias
Dr. Nikolaos Zacharias
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