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As reported, the physician was using a.18¿ 180cm straight (st) sv-5 peripheral steerable guidewire for fistula.However, the guidewire was up against the wall and felt like it got stuck.The physician attempted to remove it and part of the wire broke off in the patient.The physician was able to snare everything and complete the procedure.The user was trained with the device.The device was opened in a sterile field.The intended procedure was dialysis access fistulogram and the target lesion was cephalic vein stenosis.The vessel was 90 percent stenosed and was not calcified nor was there angulation or tortuosity.The device was not used for a chronic total occlusion.The device was not resterilized.There were no anomalies noted during prep.The patient recovered with no issues.The device will be returned for evaluation.
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The physician was using a.018¿ 180cm straight (st) sv-5 peripheral steerable guidewire for fistula.The guidewire was up against the wall and felt like it got stuck.The physician attempted to remove it and part of the wire broke off in the patient.The physician was able to snare everything and complete the procedure.The intended procedure was dialysis access fistulogram and the target lesion was cephalic vein stenosis.The vessel was 90 percent stenosed and was not calcified nor was there angulation or tortuosity.The user was trained with the device.The device was opened in a sterile field.The device was not used for a chronic total occlusion.The device was not re-sterilized.There were no anomalies noted during prep.The patient recovered with no issues.The device was not returned for analysis.A product history record (phr) review of lot 35261024 revealed no anomalies or non-conformances during the manufacturing and inspection processes that can be associated with the reported event.Based on the information provided, it is not possible to draw a clinical conclusion between the devices and the reported event.Without the return of the devices for analysis, the reported ¿guidewire fractured-separated - in patient¿ could not be confirmed and the exact root cause could not be determined.Procedural and or handling factors such as the user¿s interaction with the device may have led to the reported event, for instance, strong pulling of the device.Per the instructions for use (ifu), which is not intended as a mitigation of risk, ¿guidewires are delicate instruments and should be handled carefully.Prior to use and when possible during the procedure, inspect the guidewire carefully for signs of damage.Do not use a guidewire that shows signs of damage.Never push, auger, withdraw, or torque a guidewire that meets resistance.Stop the procedure.Do not move or torque the guidewire.First, using fluoroscopy, determine the cause of resistance and take any necessary remedial action.Torquing or pushing a guidewire against resistance may cause guidewire damage, and/or guidewire tip separation, or direct damage to the vessel.Resistance may be felt and/or observed (via fluoroscopy) by noting any buckling of the guidewire tip.If guidewire tip prolapse is observed, do not allow the tip to remain in a prolapsed position; otherwise damage to the guidewire may occur.¿ neither the phr review nor the information available suggests a design or manufacturing related cause could be related to the manufacturing process of the unit.Therefore, no corrective or preventive actions will be taken.
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