Carotid Filtration During Endovascular Aortic Valve Implantation

Inclusion Criteria: * Subject must be scheduled to undergo an endovascular aortic valve prosthesis implant procedure with the femoral artery as the intended access site for the valve delivery system. * Female subjects of child bearing potential must have a negative pregnancy test within 48 hours prior to the study procedure. * Subject's left carotid artery and innominate artery diameters must be compatible with the Claret CE Pro System sizes available for the procedure (refer to package labeling for appropriate sizing information). * Subject must have been informed of the nature of the study, agree to its provisions, and provide written informed consent. Exclusion Criteria: * Subject requires an emergent procedure. * Subject has carotid artery stenosis \>70% in either carotid artery. * Subject innominate or left carotid artery reveals significant stenosis, ectasia, dissection or aneurysm at the ostium or within 3 cm of the ostium. * Subject has allergy to materials from which the device is constructed (Nitinol, fluorinated ethylene-propylene, polyamide, polyimide, platinum, iridium, stainless steel, cyanoacrylate adhesives, polycarbonate, polyethylene, polyester, polyurethane, PTFE \[poly-tetrafluoroethylene\], polydimethylsiloxane \[lubricant coating\], silicone, polyetheretherketone, tin-silver \[solder\] or acrylated urethane adhesives) * Subject has a history of bleeding diatheses or coagulopathy or will refuse blood transfusion in cases of emergency. * Subject has renal insufficiency, defined as a creatinine level \> 2.5 mg/dl at the time of treatment, unless subject is on chronic hemodialysis. * Subject has hyperthyroidism. * Subject suffered recent (within the past 3 months) stroke with permanent deficit. * Subject suffered recent (within the past 6 months) significant gastrointestinal (GI) bleed. * Subject is involved in another clinical study or has other medical illnesses that may cause the subject to be non-compliant with the protocol or confound the data interpretation. * Subject history of intolerance, allergic reaction or contraindication to any of the study medications, including heparin, aspirin, Clopidogrel, or a sensitivity to contrast media or anesthesia which cannot be adequately pre-treated.