Using cardiac catheterization, a device that plugs the patent foramen ovale in the heart is inserted into a vein in the groin and placed in the heart with the imaging assistance of an echocardiogram. Over time, heart tissue grows over the implant, and it becomes part of the heart, correcting the defect.
IV needed: yes
Sedation provided: yes
Estimated length of study: 1 hour
Recovery time: overnight hospitalization
Possible side effects: tear of the heart or blood vessels, dislodgement of the device, or the development of irregular heartbeats.