It was reported that the procedure was to treat a lesion located in the heavily tortuous proximal circumflex artery that was heavily calcified and 99% stenosed.After lesion preparation, a xience sierra was delivered but during deployment, the delivery balloon ruptured at 10 atmospheres.As the stent was not expanded enough, post-dilatation was performed with a non-abbott balloon to successfully complete the procedure.There was no adverse patient sequela and no clinically significant delay.No additional information was provided.
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A visual and functional inspection was performed on the returned stent delivery system (sds).The reported balloon rupture was confirmed.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 similar incidents and/or complaints reported from this lot.Balloon material ruptures can be affected by numerous factors such as balloon damage during processing, balloon material, inflation technique, inflation over rated burst pressure, interactions with other devices, anatomical conditions, a previously implanted stent or insufficient preparation prior to use.The device was prepped prior to use without any leak or ruptures noted, which would suggest that the device was not damaged prior to use.The investigation was unable to determine a conclusive cause for the reported balloon rupture.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.Na.
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