Patient came in for elective flow diverting stent placement.The device was placed appropriately across the 2 aneurysms.After removal of all microcatheters, a global angiogram was obtained.During this angiogram, the device migrated, and caused slow flow in the middle cerebral artery (mca) territory.Subsequent attempts to reposition or recapture the device were unsuccessful and resulted in rupture of 1 of the 2 aneurysms, and the device occluded flow into the mca.Concern that the fred device must be oversized in diameter and length for safe use or the chart for the sizing of the device must be validated/corrected and made more accurate.
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