First-in-man experience with a new embolic deflection device in transcatheter aortic valve interventions

EuroIntervention : Journal of EuroPCR in Collaboration with the Working Group on Interventional Cardiology of the European Society of Cardiology
Kevin OnseaPieter Stella

Abstract

To report our first-in-man experience with a new cerebral embolic deflection device (SMT Embolic Deflection Device) during transcatheter aortic valve implantation (TAVI). A significant number of strokes and brain infarcts are caused by embolisation of atherosclerotic material, clots and other debris during various phases of invasive cardiac procedures, especially TAVI. The application of a temporary filter in the aortic arch averting dislodged emboli from entering the cerebral circulation might prevent this. In 15 patients (mean age 79 years) with severe aortic stenosis undergoing percutaneous transfemoral or transapical aortic valve implantation, the SMT Embolic Deflection Device was advanced utilising the contralateral femoral artery access using a 9 Fr delivery sheath. Once deployed in the aortic arch, a porous membrane shields the supraaortic-cerebral trunks by deflecting emboli away from the cerebral circulation. Embolic material is not contained or removed by the device. A 6 Fr pigtail catheter can be used through the same sheath throughout the whole procedure. Brain diffusion weighted (DW)-MRI was obtained in 10 patients before and at 4 days after (± 2 days) the procedure and retrospectively compared to 20 patients previ...Continue Reading

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