5 doctors weighed in:
Does an av canal cause decreased o2 saturation in the blood?
5 doctors weighed in

Dr. Shaji Menon
Pediatrics - Cardiology
3 doctors agree
In brief: Yes, it can.
Yes, atrioventricular canal (av canal) defects can result in decresed oxygen saturation if there is a residual shunt (mixing of blue and pink blood) which can happen in presence of elevated pressures in the lung (pulmonary hypertension).
Decresed oxygen saturation can also result from lung disease and other conditions.

In brief: Yes, it can.
Yes, atrioventricular canal (av canal) defects can result in decresed oxygen saturation if there is a residual shunt (mixing of blue and pink blood) which can happen in presence of elevated pressures in the lung (pulmonary hypertension).
Decresed oxygen saturation can also result from lung disease and other conditions.
Dr. Shaji Menon
Dr. Shaji Menon
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Dr. William Scott
Pediatrics - Cardiology
In brief: No
The most common scenario is that already oxygenated blood is recirculated through the lungs, which does not cause a decrease in o2 saturation in the body.
If there is associated obstruction to pulmonary blood flow, such as tetralogy of fallot, then de oxygenated blood may enter the body and result in a decreased oxygen saturation.

In brief: No
The most common scenario is that already oxygenated blood is recirculated through the lungs, which does not cause a decrease in o2 saturation in the body.
If there is associated obstruction to pulmonary blood flow, such as tetralogy of fallot, then de oxygenated blood may enter the body and result in a decreased oxygen saturation.
Dr. William Scott
Dr. William Scott
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