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 instructions for use for the peripheral orbital atherectomy system states: "the diamondback 360® peripheral orbital atherectomy system is a percutaneous orbital atherectomy system indicated for use as therapy in patients with occlusive atherosclerotic disease in peripheral arteries and who are acceptable candidates for percutaneous transluminal atherectomy." use of the system is contraindicated if the target lesion is within a bypass graft or stent.The device history record for the reported oad was unable to be reviewed, as the lot number was not provided.(b)(4).
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A 1.25 solid crown peripheral orbital atherectomy device was used to treat a chronic total occlusion in a previously placed stent in the left anterior descending artery.The crown of the oad became stuck in the stent and could not be removed using balloon angioplasty, snare, or microcatheter.The shaft of the device was cut, and the crown remained in the patient.The patient coded during the procedure and was placed on extracorporeal membrane oxygenation (ecmo).As of (b)(6) 2020, the patient had been removed from ecmo and was in stable condition.
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