{"type":"rich","version":"1.0","provider_name":"Transistor","provider_url":"https://transistor.fm","author_name":"The Naked Heart","title":"Patent Foramen Ovale (PFO): A Hidden Link in Stroke, TIA, Migraine and More — When to Close the Hole in the Heart","html":"<iframe width=\"100%\" height=\"180\" frameborder=\"no\" scrolling=\"no\" seamless src=\"https://share.transistor.fm/e/7587ac6c\"></iframe>","width":"100%","height":180,"duration":1335,"description":"Before birth, the foramen ovale is a vital foetal opening between the right and left atria, allowing oxygen-rich placental blood to bypass the inactive lungs. After the first breath, pressure in the left atrium increases, closing the flap naturally. In around 25% of adults, the flap does not seal fully — this persistent communication is called a Patent Foramen Ovale (PFO) which is an important cause of cryptogenic stroke. All standard tests including an echocardiogram can be normal- it can be only be diagnosed using a bubble contrast study and once diagnosed, treatment with clam shell closure is high effective.\nRead full blog","thumbnail_url":"https://img.transistorcdn.com/mR1oPl_UOaBKJMzgq70kcHFWTjWfI5rYV8km_l9UlW0/rs:fill:0:0:1/w:400/h:400/q:60/mb:500000/aHR0cHM6Ly9pbWct/dXBsb2FkLXByb2R1/Y3Rpb24udHJhbnNp/c3Rvci5mbS9lNGI4/MmRlYWY3M2YyNmVm/N2JmMDIxNzJmZWJi/NzA1YS5qcGc.webp","thumbnail_width":300,"thumbnail_height":300}