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It was reported that a mitraclip procedure was performed to treat degenerative mitral regurgitation (mr) with a grade of 4+ on a patient with thick leaflets and a pre-existing flail.A mitraclip xtw was inserted and placed on the mitral valve.However, during deployment, after pulling the lock line lever, the clip relaxed slightly, but within normal limits.The clip was deployed on the mitral valve.However, after deployment, the clip opened from approximately 20 to 60 degrees.It was noted that the clip remained stable on the leaflets.To stabilize the clip, a second clip was then inserted and deployed medial and adjacent to the first clip, reducing mr to a grade of 1.There was no clinically significant delay in the procedure.
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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.Additionally, a review of the complaint history identified no similar complaints reported from this lot.Based on available information, the reported cowl appears to be due to patient anatomy, per the physician.The unexpected medical intervention 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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