2 doctors weighed in:
Why is transposition of the great vessels fatal?
2 doctors weighed in

Dr. Mario Matos-Cruz
Surgery - Thoracic
1 doctor agrees
In brief: 2 parallel circ.
It results in 2 parallel circuits.
Obviously if baby barely alive some mixing is present. The only crossover connections are the patent ductus arteriosus and the patent foramen ovale or asd. If a vsd present that favors mixing. If the PDA closes and the pfo not big enough, death may ensue unless an emergency rashkind procedure(balloon atrial septostomy) done to allow arteriovenous mixing &oxygenati.

In brief: 2 parallel circ.
It results in 2 parallel circuits.
Obviously if baby barely alive some mixing is present. The only crossover connections are the patent ductus arteriosus and the patent foramen ovale or asd. If a vsd present that favors mixing. If the PDA closes and the pfo not big enough, death may ensue unless an emergency rashkind procedure(balloon atrial septostomy) done to allow arteriovenous mixing &oxygenati.
Dr. Mario Matos-Cruz
Dr. Mario Matos-Cruz
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