Manufacturing review: the device history record (dhr) could not be performed as the lot number is unknown.Investigation summary: the device was not returned for evaluation.Medical records were provided and reviewed.Approximately a month later, patient presented with chest pain and shortness of breath.Subsequent ct revealed an acute pe with a large clot burden in pulmonary artery.Subsequently an ivc gram revealed, the apex of the filter markedly tilted to the right with 3 short leg struts on the left, displaced in a cephalad fashion.There was also a large amount of thrombus extending from the ivc in a cephalad direction and filling the suprarenal ivc all the way to the level of right atrium.Therefore, the investigation is confirmed for the filter tilt and material deformation.Additionally, it can be confirmed that the patient experienced right atrial thrombus post deployment.However, the relationship to the filter is unknown.Additionally, it can be confirmed that the patient experienced pe post deployment.However, the relationship to the filter is unknown.Based upon the available information, the definitive root cause is unknown.Labeling review: a review of product labeling documents (e.G.Procedural instructions, indications, warnings, precautions, cautions, possible complications, contraindications, and unit label) showed that the product labeling is adequate.
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