The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities issued to the reported lot that would have contributed to this event.Based on available information, the cause of the reported ekg/ecg changes associated with the st elevation appears to be due to air embolism.The cause of the reported air embolism could not be determined.The reported patient effects of embolism and ekg/ecg changes (cardiac arrhythmias), as listed in the mitraclip system instructions for use, are known possible complications associated with mitraclip procedures.The reported medication required was a result of case-specific circumstances.There is no indication of a product quality issue with respect to manufacture, design, or labeling.
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This is filed to report air entering the patient, causing right ventricle failure and st elevation requiring intervention.It was reported that a mitraclip procedure was performed to treat functional mitral regurgitation (mr) grade 4+.The first clip was positioned on the valve and deployed successfully.The clip delivery system (cds) was withdrawn, and no air was noted within the steerable guide catheter (sgc).After withdrawal, the patient started to experience right ventricle (rv) failure and st elevation requiring medical intervention.The patient was given norepinephrine, ephedrine 10mg, vasopressin 1 unit, epinephrine 10mg.Once the patient was stable, the valve was re-assessed and the implanted clip was observed to be stable.An additional mitraclip was then implanted laterally without issue, reducing mr to trace.Multiple bubbles were observed specifically in the right atrium during the procedure.They were unsure how air could have been entrained into the sgc/cds as all chambers were fluid filled and the cds high pressure tubing was intact.No additional information was provided.
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