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 reported patient effect of vascular dissection is listed in the dragonfly optis instruction for use, as a known complication that may occur as a consequence of intravascular imaging and catheterization procedures.The investigation determined that the reported failure to advance was related to circumstances of the procedure.It is likely that anatomical challenges prevented the imaging catheter from crossing the lesion.It is also likely that the reported applied excessive force during an attempt to cross the lesion caused a vascular dissection.The unexpected medical intervention was related to procedural circumstances.There is no indication of a product quality issue with respect to manufacture, design or labeling.
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It was reported that a dissection was noted after strong force was used with the dragonfly optis catheter that was unable to cross the moderately tortuous, heavily calcified, chronic total occlusion in the left anterior descending coronary artery.The cause of the dissection was unknown.The dragonfly optis catheter was unable to cross due to the patient anatomy.Prolonged balloon inflation was used to treat the dissection.Intravascular ultrasound (ivus) was performed instead of oct imaging.The procedure was completed with no further issues and the patient was stable.There was little delay in the procedure.No additional information was provided.
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