A member asked:

I'm curious, when a fetus has transposition of the great arteries are they unaffected until they are born?

4 doctors weighed in across 2 answers
Dr. Creighton Wright answered

Specializes in surgery

Generally: Blue when they are off the placental circulation. Traditional blue baby can now be identified during pregnancy.

Answered 4/4/2013

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Dr. Fuad Kiblawi answered

Specializes in Pediatric Cardiology

No: Usually fetuses tolerate the transposition hemodynamics very well in utero and after birth they will be cyanotic (blue). However, it is thought that transposition physiology may affect brain development because the blood with lower oxygen content is what supplies the fetal brain compared to fetuses with normal heart. In general, after repair transposition patient have excellent outcome.

Answered 5/5/2015

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