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How does the pulmonary pressure get high enough in asd to make it a right to left shunt instead of the opposite if its just a small hole?

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Dr. Rick Koch
Internal Medicine - Cardiology

In brief: Pulmonary

Hypertension can result from years of increased pulmonary return when the pressure in the right atrium gets higher than left atrium flow direction shifts.

In brief: Pulmonary

Hypertension can result from years of increased pulmonary return when the pressure in the right atrium gets higher than left atrium flow direction shifts.
Dr. Rick Koch
Dr. Rick Koch
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