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It was reported that the procedure was performed to treat a heavily calcified lesion in the posterior tibial artery.The creation of a fistula between the posterior tibial artery and posterior tibial vein through the use of a limflow system was attempted; however, due to the calcium the guidewire for an orbital atherectomy could not cross the lesion.Therefore, a 300cm ht command 14 guidewire was advanced into the anatomy however was noted to separate in the occluded lesion.The separated portion was left in the anatomy and there were no adverse patient sequela nor clinical delay.No additional information was provided.
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The device was not returned for analysis.A review of the production records and the corrective and preventive actions (capa) database was performed and revealed no indication of a product quality issue.Additionally, a query of the complaint handling database for the reported lot revealed no indication of a lot specific issue.The investigation was unable to determine a conclusive cause for the reported difficulties or patient effect.It was reported that the guide wire encountered difficulty during advancement and subsequently separated due to device interaction.Factors that may contribute to difficulty during advancement of the guide wire include, but are not limited to, outer diameter of the guide wire, device support, buildup of procedural contaminants, user technique, challenging anatomy, interaction with accessory devices, and/or damage to the guide wire.Based on the information provided and because the device was not returned for analysis, it is unknown what may have caused the reported difficulty during advancement or removal.Additionally, it was reported that the material separation was due to interaction with an accessory device.The separated portion of the tip remains within the anatomy.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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