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, ...

Heart surgery for patent foramen ovale may not always reduce the risk of stroke and other complications due to clot formation, according to recent research. Patent foramen ovale is a defect in the ...

The persistently patent foramen ovale has been implicated in a variety of neurologic and embolic events, including transient ischemic attacks and stroke, decompression illness in divers, ...

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 ...

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 ...

† New-onset migraine was noted in ten patients. ASD: Atrial septal defect; NA: Not assessed; NR: Not reported; PFO: Patent foramen ovale. The following arguments support the hypothesis that ...

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 ...

Central retinal artery obstruction (CRAO) is uncommon in young adults, the mean age being 60 years. Emboli are visible in 25% of cases and embolic sources found in 40% of patients. 1 We present the ...

Patent foramen ovale (PFO) may be associated with migraine, especially migraine with aura (MA), when the PFO is permanent right-left shunt (RLS), large RLS, and large-size PFO, a recent study found.

Before birth, the fetal heart has an opening called the foramen ovale between the right and left atria. This allows blood to bypass the lungs and be directed straight to the left side of the ...

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 ...

A patent foramen ovale is an opening that some adults have between the top two chambers of their hearts. Everyone has this opening early in life, but it often seals during infancy. In some people, ...