Related Experiment Video
Updated: Jul 15, 2026

10:52
Closure of a Patent Foramen Ovale (PFO): An Intervention Sequence
Published on: December 23, 2022
The "father of modern interventional pediatric cardiology" retires
Texas Heart Institute Journal
|April 11, 2007
Abstract
No abstract available in PubMed .
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Electrical signals—sent from the sinoatrial (SA) node in the right atrial wall to the atrioventricular (AV) node between the right atrium and right ventricle—cause both atria to simultaneously contract. When the signal reaches the AV node, it pauses for approximately a tenth of a second, allowing the atria to contract and empty blood into the...

