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The primary issue with EVT is the risk of recanalization, or a return of blood flow into the original aneurysm.

Over the next few days, emboli are completely engulfed by the endothelium and extravasated into the perivascular space, leading to vessel recanalization and blood flow reestablishment.

However, we do believe structural heart interventions to be realistic therapeutic targets, including delivery and repair of cardiac valve devices, non-surgical access and closure of large transthoracic cardiac access ports, repair of other cardiac structural defects, and enhanced image guidance of peripheral artery interventions such as recanalization of chronic occlusion.”