The device was not returned for analysis.A review of the lot history record revealed no manufacturing nonconformities issued to the reported lot.Additionally, a review of the complaint history identified no similar complaints reported from this lot.The investigation was unable to determine a cause for the reported leak.The reported air embolism and subsequent hypotension appears to be related to the reported leak.Air embolism and hypotension are listed in the instructions for use as known possible complications associated with the mitraclip procedures.The reported medication required was a result of case specific circumstance.There is no indication of a product issue with respect to manufacture, design, or labeling.
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It was reported that a mitraclip procedure was performed to treat a degenerative mitral regurgitation (mr) with grade of 4.After inserting the steerable guide catheter (sgc) into the left atrium, the dilator wire was removed according to the instruction for use (ifu).Although we confirmed that there was reverse blood by suctioning the syringe and that there was no air in the sgc column, the blood pressure decreased after the dilator was removed.Transesophageal echocardiogram (tee) revealed abnormal left ventricular wall motion, and vasopressors were administered.Hemodynamics improved after about 5 minutes.A thorough examination of the coronary artery using a contrast agent revealed no stenosis.It was suspected that this was a temporary coronary embolization due to air entering the anatomy due to the sgc; however, air could not be confirmed under echocardiogram or visually in the sgc.The procedure was then continued with one clip implanted, reducing mr to grade 1.There was no clinically significant delay in the procedure.No additional information provided.
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