A hole in your heart can be present in two forms. One is called PFO, or “patent foramen ovale,” a small opening between the two upper heart chambers. The other type is an ASD, or “atrial septal defect,” a congenital disability in which the hole is in the wall between the two upper heart chambers. These holes vary in size, and for some people, they close over time as a baby, while in others, the hole poses a health risk and must be closed.
ASO Implantation: Close a Hole in the Heart – Without Open-Heart Surgery
An ASO is a catheter-based device that can be implanted to halt the blood flow between the two heart chambers. It is made of two discs that are linked together by a polyester thread to allow the device to collapse and fit through a narrow catheter. An access point is created in a blood vessel, and with real-time visual image guidance, is threaded through the vessel until it reaches the hole (PFO). Once in place, it is released and opens, plugging the hole. The procedure takes about one to two hours to complete. You will be under an anesthetic and will not feel any pain during the procedure.