The device was not returned for analysis.A review of the lot history record identified no manufacturing nonconformities issued to the reported lot.Based on the information reviewed, a conclusive cause for the thrombosis could not be determined.The reported patient effect of thrombosis is listed in the mitraclip system instructions for use (ifu), as a known possible complication associated with mitraclip procedures.There is no indication of a product issue with respect to manufacture, design or labeling.
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