The device was not returned for analysis.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 indication of a lot specific product quality issue.The investigation was unable to determine a cause for the reported difficult to advance, material deformation and difficult to remove.It may be possible that the pressurewire may have gotten caught on a stent strut that was not fully apposed to the vessel wall.However, this could not be confirmed.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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It was reported this was a procedure to treat the moderately tortuous left anterior descending coronary artery and the right coronary artery.A pressurewire x, wireless device was inserted and resting full-cycle ratio (rfr) was successfully measured.Two stents were successfully implanted.The pressurewire was reinserted to measure fractional flow reserve (ffr).However, the device became caught on the strut of one of the implanted stents.While there was no reported damage to the non-abbott stent, the pressurewire x sustained damage to the tip which resulted in an loss of durability.The device was removed and replaced with another pressurewire x, wireless device.There were no adverse patient effects and no clinically significant delay in the procedure.No additional information was provided.
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