
The Non-Surgical Closure of Congenital Heart Defects
What is an “open foramen ovale”? The open foramen ovale medical abbreviation PFO for “patent foramen ovale”) is a usually small, only a few millimeter thick, membrane-covered slit in the septum between the atria of the heart. It is a remnant from human embryonic development that usually closes during the newborn period; however, in 10-25% of newborns a small opening remains that generally…