Sentinel cerebral protection system was packaged without stylet in wire port; upon inspection, device seemed to be appropriate to use.Due to very tortuous anatomy, sentinel device was unable to smoothly advance through innominate artery and up left common carotid, device was removed, and a different stiffer guidewire was advanced to attempt to deliver sentinel protection.Device was still unable to be delivered and was removed.Upon inspection of device, the wire port in the distal filter that sits in the left common carotid was kinked and not smooth as it normally is.A second new sentinel device was prepped and delivered successfully following the removal following the first device.Successful procedure performed w/o harm to patient.
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