The physician was attempting to treat a lesion in the lad with an endeavor resolute drug eluting stent.The device was inspected prior to use with no issues noted.The lesion exhibited 75% stenosis, calcification and tortuosity.The lesion was pre-dilated; however the endeavor resolute stent could not pass the lesion.The physician used a new device to complete the surgery.The patient is good.No damage to the stent was reported, however, following evaluation of the returned device stent deformation was confirmed.Evaluation summary : the stent had moved distally on the balloon.The 1st distal stent segment was covering the distal marker band.Crimp impressions were evident on the exposed balloon portion.The 5th to 8th distal stent segments were raised and deformed.Please note that this device (endeavor resolute) is distributed outside the united states; however, it is similar to the united states distributed product (resolute integrity).
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Evaluation results: inherent risk of procedure (stent deformation).Patient condition affected effectiveness of the device (target lesion exhibited 75% stenosis, calcification and tortuosity).Deformation problem.Evaluation conclusion: known inherent risk of procedure (stent deformation).Device failure/lack of effectiveness related to patient condition device (target lesion exhibited 75% stenosis, calcification and tortuosity).(b)(4).
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