Things Needed To Rule Out a Patent Foramen Ovale (PFO)
A Patent Foramen Ovale (PFO) It is a slit-like defect resulting from an incomplete fusion of the foramen ovale within the atrial septum. 20-25% of the population have a PFO and echocardiography is often used to diagnosis it. This week we will review the 4 things needed to rule out a PFO during an echo bubble- study.