We then cross the PFO using a Goodale-Lubin catheter (Medtronic) and a straight Amplatz wire (Cook Medical) in the long-axis view. Many people don't need treatment unless they're at risk of stroke or blood clots.Patent foramen transcatheter repair is a procedure to fix this hole in the heart. Normally, the atrial septum separates the right and left atria. The foramen ovale is a hole in the wall between the left and right atria of every human fetus. This hole allows blood to bypass the fetal lungs. A PFO can allow a small amount of blood to pass from the right side of the heart to the left side of the heart; this is called a "shunt. A patent foramen ovale is a small, flaplike opening in the wall between the upper chambers of the heart. A PFO closure uses a medical device to close an opening between your heart's two upper chambers. You only need this opening as a fetus.