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Is Ivymark Syndrome a genetic disorder??

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Inheritance patterns
Ivemarks or right atrial isomerism accounts for approximately 1% of congenital heart disease in the infant. It is an abnormality of the formation of the left-right axis of the body, with research currently examining the role of signalling molecules in embryonic cilia development. There is no clear inheritance pattern although some genetic markers have now been identified in some cases, indicating that this is a complex multi-factorial mechanism. The recurrence risk for future pregnancies is approximately 5%. There is a slight male preponderance and is more common in certain racial groups.

Prenatal diagnosis
Although specific genes have been linked, there are no definite genetic markers that can be tested for antenatally. The diagnosis is made by detecting the cardiovascular abnormalities on the 18-20 week antenatal ultrasound scan.
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