PFO or ASD Closure: Patent Foramen Ovale (PFO) or an Atrial Septal Defect (ASD)

During a PFO or an ASD closure, a puncture is made in your groin so that the doctor can put a special catheter (tube) into your vein.  This pamphlet explains what to bring to the hospital, what to expect before, during and after the procedure.