Patent foramen ovale closure after cryptogenic stroke – assessing the evidence
Approximately 20 to 30 percent of ischemic strokes are cryptogenic, after ruled out a cardioembolic or large vessel source and small vessel disease. There is an increased prevalence of patent foramen ovale (PFO) in patients who have experienced a cryptogenic stroke, suggesting that paradoxical embolism through a PFO may be the cause of some cryptogenic strokes. […]