Medical illustration depicting the percutaneous closure of Patent foramen ovale (PFO)
PFO is one of the most common congenital defects in the heart. A catheter is used to guide the placement of a patent foramen ovale closure device – which becomes a permanent implant – that will prevent the flap from opening. Percutaneous PFO closure is a safer and less invasive procedure than Open heart surgery.
Steps of the procedure:
1. Blood flow between the chambers of the heart. Yellow arrow depicts blood flow through the Foramen ovale.
2. The catheter is initially inserted into a large vein through a small incision, made usually in the groin area, and then is advanced into the heart.
3. Septal occluder closing the foramen.
4. Circular discs covering the hole on both sides.
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