The results of the investigation are inconclusive since the reported device was not returned for analysis.Based on the information received, the cause of the reported event could not be conclusively determined.The device history record for this oad lot number has been reviewed.No issues or discrepancies were noted during this review that would have contributed to the reported event.The device met material, assembly, and quality control requirements.(b)(4).
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A diamondback coronary orbital atherectomy device (oad) was selected for treatment of a lesion in the proximal right coronary artery.Several treatments were administered without issue.Throughout the procedure the patient experienced nausea and vomiting.Glideassist mode was used to successfully advance the oad to mid lesion, and several treatment passes were administered on low speed.Per the physician, it felt like the device had jumped, however this was not visibly seen on the angiogram.Imaging was performed, and no issues were noted.One more treatment pass was performed, and the oad stalled.The physician was advised to stop treatment and remove the device.Imaging revealed a vessel perforation, and the patient complained of chest pain.A balloon was inserted to tamponade the vessel, and a right ventricle infarction occurred as a result.The patient went into pulseless electrical arrest and coded.Advanced life support was administered for 40 (forty) minutes.A pericardial tap was performed, and a balloon pump was inserted.The patient was intubated.When the patient was stable, the perforation was re-assessed and confirmed to be sealed.The patient expired two (2) days later, due to the right ventricular infarction.In the opinion of the physician, the perforation was an outcome that they were prepared for, due to the tortuosity and severe calcium present in the vessel.In the opinion of the physician, the perforation was not related to the patient's death.The right ventricular infarction was caused by balloon expansion that was performed to tamponade the vessel.
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