During the procedure, when the catheter was inserted into the left circumflex artery lesion, air entered and caused peripheral embolization and vital changes in the patient.No pullback had been performed with the catheter.There were no patient symptoms initially.The peripheral embolization was diagnosed by cine image.After the peripheral embolization, pressure decrease and st elevation occurred, and the patient experienced chest pain.A stenosis-penetration catheter was used for suction and nicorandil and nitroprusside were administered for treating the embolization.After that, stenting was performed using intravascular ultrasound as a guide, and the procedure was completed.The patient is in stable condition postoperatively.
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One dragonfly opstar imaging catheter was received for evaluation.Functional testing was not possible due to the presence of dried contrast within the catheter sheath; however, dimensional inspection revealed the purge hole diameter met the specifications.There were no anomalies, ruptures, or damages noted to the returned catheter.The device history record was reviewed to ensure that each manufacturing and inspection operation was performed.Based on the condition of the returned device and the information received, the cause of the reported leak and embolism remains unknown.
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