It was reported that the pressurewire x, wireless device was used in the left anterior descending (lad) artery with moderate tortuosity.It was noted that a <6f sheath was used against instruction for use.Resistance was felt with the lesion when attempting to advance.Prior to crossing the lesion, the tip of the device was noted to be tearing, but remained in one piece.Therefore, the device was removed and an unspecified device was used to complete the procedure.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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The device was not returned for evaluation.Lot history record (lhr) and corrective and preventive actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint history identified no indication of a lot specific product quality issue.It was reported that the pressurewire was used with a guiding catheter smaller than 6f.It should be noted that the pressurewire x, instructions for use states: "use the pressurewire x guidewire in conjunction with a 6f (2 mm diameter) guiding catheter".Based on the reported information and results of the complaint investigation there is no indication that the reported difficult to advance resulting in torn material is related to a product quality issue with respect to the design, manufacture, or labeling of the device.In this case, it is likely that challenging anatomical condition or severe calcification/angulation caused damaged such as the reported torn material, bend, or kink.As a result, the damage affected the maneuverability to navigate resulting in the reported difficulty advancing.
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