4 doctors weighed in:
What sort of problem is an absent pulmonary valve?
4 doctors weighed in

Dr. Barton Cook
Pediatrics - Cardiology
1 doctor agrees
In brief: Rare CHD
A rare congenital heart defect.
The pulmonary valve doesn’t form and not enough blood can flow to the lungs to get oxygen; only through the PDA (patent ductus arteriosus). It often occurs as part of a condition called tetralogy of fallot. There is usually a hole between the left and right ventricles of the heart (ventricular septal defect). Surgery as a newborn is required.

In brief: Rare CHD
A rare congenital heart defect.
The pulmonary valve doesn’t form and not enough blood can flow to the lungs to get oxygen; only through the PDA (patent ductus arteriosus). It often occurs as part of a condition called tetralogy of fallot. There is usually a hole between the left and right ventricles of the heart (ventricular septal defect). Surgery as a newborn is required.
Dr. Barton Cook
Dr. Barton Cook
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Dr. James Ferguson
Pediatrics
1 doctor agrees
In brief: Absent/ never formed
The defect occurs when an unopen artery without a valve cannot carry blood to the lungs.
This is ok during pregnancy since fetal lungs don't need to receive blood & add o2.Blood is pumped thru bypass circuits to the body.After birth, when lungs must supply o2, this can be a fatal defect.If recognized early, drs can keep the bypass open & heart surgeons can reroute the flow with open heart surgery.

In brief: Absent/ never formed
The defect occurs when an unopen artery without a valve cannot carry blood to the lungs.
This is ok during pregnancy since fetal lungs don't need to receive blood & add o2.Blood is pumped thru bypass circuits to the body.After birth, when lungs must supply o2, this can be a fatal defect.If recognized early, drs can keep the bypass open & heart surgeons can reroute the flow with open heart surgery.
Dr. James Ferguson
Dr. James Ferguson
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