A patent foramen ovale (PFO) is a hole in the heart that doesn’t close as expected after birth. Before a baby is born, they have a hole between the left and right sides of their heart. This hole, ...
The New England Journal of Medicine: Patent Foramen Ovale in Young Adults with Unexplained Stroke
Patent foramen ovale (PFO) has been linked to ischemic strokes of undetermined cause (cryptogenic strokes). PFO—a remnant of fetal circulation when the foramen ovale does not seal after birth—can ...
The foramen ovale is a tunnel-like anatomical structure located in the interatrial wall of the fetal heart that enables right-to-left shunting during fetal development. In the majority of people this ...
The American Journal of Managed Care: Review Explores Association Between Migraine and Patent Foramen Ovale
A “dose-response” relationship may exist between migraine and patent foramen ovale (PFO), according to a review published in Frontiers in Neurology. According to the American Heart Association, a PFO ...
The New England Journal of Medicine: Patent Foramen Ovale and Cryptogenic Stroke in Older Patients
Studies to date have shown an association between the presence of patent foramen ovale and cryptogenic stroke in patients younger than 55 years of age. This association has not been established in ...
In the womb, fetuses have an opening in the upper chambers of the heart known as a foramen ovale. While the opening is supposed to close naturally after birth, for many it never does. That's when it's ...
CMAJ: Hypoxemia from patent foramen ovale in a 65-year-old woman with carcinoid heart disease
Patent foramen ovale is usually an incidental finding but can sometimes cause hypoxemia. Patent foramen ovale should be considered when the degree of hypoxemia is disproportionate to the underlying ...