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It was reported that the procedure was to treat a distal left main (lm), left anterior descending artery and the circumflex artery that is heavily calcified.The 2.50x15mm nc trek neo balloon dilatation catheter (bdc) would not fully deflate noted by the images provided.When attempting to remove the bdc through the guiding catheter resistance was met with a previously implanted stent.The bdc became stuck and separated.The previously implanted stent and stuck bdc had to were removed together.The separated portion of the bdc was snared out with the entire system as the snare device became stuck in the radial sheath.The lesion was re-stented with new unspecified stents, unspecified balloon, unspecified wires and unspecified guiding catheter to complete the procedure.There was no adverse patient sequela and no clinically significant delay in the procedure.No additional information was provided.
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The device was not returned for analysis.Production record and corrective and preventative actions (capa) reviews were performed and revealed no indication of a product quality issue.Additionally, a review of the complaint history identified no other similar complaints from this lot.Based on the information provided, a definitive cause for the reported complaints could not be determined; however, the reported unexpected medical intervention appears to be related to circumstances of the procedure.Possible factors that may contribute to difficulty deflating the balloon include, but are not limited to, deflation technique, tortuous anatomy, loose connection with the indeflator, contamination in the inflation lumen or damage to the guide wire and/or inflation lumen.In this case, it is possible that the calcification or partial deflation and early retraction contributed to the reported difficulty removing the device and upon further manipulation the device ultimately separated; however, a conclusive cause cannot be determined.Additionally, it is possible that the nc trek was impacted by the proximal edge of the stent.If the stent system was not fully opened causing the proximal end to be coned in, that may have been damaged by the stent; however, a conclusive cause cannot be determined.There is no indication of a product quality issue with respect to the design, manufacture, or labeling of the device.
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