Patent foramen ovale (PFO) is an interatrial communication at the level of oval fossa caused by the incomplete or missed fusion of the septum primum and septum secundum after birth. PFO has a ...

Messe SR, Silverman IE, Kizer JR, et al. Practice parameter: recurrent stroke with patent foramen ovale and atrial septal aneurysm: report of the Quality Standards Subcommittee of the American ...

ASD: Atrial septal defect; NA: Not assessed; NR: Not reported; PFO: Patent foramen ovale. The following arguments support the hypothesis that paradoxical microembolism may provoke migraine attacks ...