(b)(4): during processing of this complaint, attempts were made to obtain complete event, patient and device information.Concomitant medical products: guide catheter: 7fr spb; stent: resolute onyx 2.75 x 18 mm.The device was received.The investigation is not yet complete.A follow-up report will be submitted with all additional relevant information.
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It was reported that the procedure was performed to treat a concentric, de novo lesion in the first diagonal branch of the left anterior descending coronary artery with no tortuosity, no calcification and 90% stenosis.A previously deployed stent was crossing the first diagonal branch.Following pre-dilatation, a 2.75 x 18 mm non-abbott stent was deployed at the distal side of the lesion.A 3.00 x 15 mm xience sierra stent delivery system (sds) was advanced with no resistance for deployment proximally to overlap the non-abbott stent.On deploying the stent of the sds, contrast was noted to leak out distally from the balloon at 12 atmospheres.The stent was deployed; however, was noted to not be fully apposed to the vessel wall.Despite insufficient deflation of the balloon, the sds was removed with the balloon partially deflated without issue and the non-abbott sds balloon was re-advanced to successfully post dilate the stent.There was no adverse patient sequela and no clinically significant delay in the procedure.No additional information was provided.
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