As reported, after deploying the stent of an 8mm x 40mm precise pro rx carotid self-expanding stent (ses) delivery system in the right internal carotid artery, an attempt to post dilate the stent with a non-cordis 5.5mm x 20mm balloon catheter was made.However, the balloon catheter could not advance through the implanted stent and a stent fracture was observed.The fractured stent did not appear to be completely separated.The procedure ended after unsuccessfully crossing with the non-cordis balloon.There were no reported injuries to the patient.A 7f rain catheter sheath introducer (csi) was used for access, and a 7f non-cordis guiding catheter was used.The device will not be returned for evaluation.
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Compliant conclusion: after deploying the stent of an 8mm x 40mm precise pro rx carotid self-expanding stent (ses) delivery system in the right internal carotid artery, an attempt to post dilate the stent with a non-cordis 5.5mm x 20mm balloon catheter was made.However, the balloon catheter could not advance through the implanted stent and a stent fracture was observed.The fractured stent did not appear to be completely separated.The procedure ended after unsuccessfully crossing with the non-cordis balloon.There were no reported injuries to the patient.A 7f rain catheter sheath introducer (csi) was used for access, and a 7f non-cordis guiding catheter was used.The product was not returned for analysis.However, pictures were provided for analysis which indicated an unevenness in the deployed stents profile.A product history record (phr) review of lot 18212752 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.The reported ¿stent fractured¿ could not be confirmed as the device was not returned for analysis as thew stent remains implanted in the patient.The exact cause could not be determined.Procedural or handling factors or vessel characteristics (although unknown) may have contributed to the reported event.However still images provided of the procedure are suggestive of an unevenness in the deployed stent¿s profile.According to the safety information in the instructions for use, ¿recrossing a deployed stent with adjunct devices must be performed with caution.¿ according to the safety information in the instructions for use, ¿recrossing a deployed stent with adjunct devices must be performed with caution.¿ neither the phr review nor the procedural images nor the limited information provided suggests that the event experienced by the customer could be related to the manufacturing process; therefore, no corrective/preventive action will be taken at this time.
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