It was reported that the procedure was to treat a heavily calcified, mildly tortuous left anterior descending artery that is 80% stenosed.The vessel was pre-dilated with an non-abbott device.A 3.5 guide was first selected; however did not provide adequate support therefore, a 6fr guideline was used to facilitate the delivery of the stents.An unspecified stent was previously deployed and a 4.0x28mm xience sierra stent delivery system (sds) was advanced too far forward; therefore, was pulled back to reposition to desired location.The sds met resistance with anatomy and the previously implanted stent.The stent partially dislodged and movement of the balloon markers was noted; however, stent was deployed by inflating the delivery system not the intended position in the mid lad layered on the previously implanted stent.A third stent unspecified xience sierra stent was successfully implanted to treat the target lesion at the proximal lad and left main artery.There was no clinically significant delay in the procedure.No additional information was provided.
|
The device was not returned for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Additionally, a review of the complaint history identified no other incidents from this lot.The investigation determined the reported difficulties related to difficulty to remove (stent and anatomy) and stent dislodgement appear to be related to circumstances of the procedure.The investigation was unable to determine a conclusive cause for the reported component misassembled (marker band misalignment).There is no indication of a product quality issue with respect to manufacture, design or labeling.H6: health effect - impact code 4641 removed.
|