Manufacturing review: the device history records have been reviewed with special attention to the raw materials, subassemblies, manufacturing process and quality control testing.This lot met all release criteria.There was nothing found to indicate there was a manufacturing related cause for this event.This is the only event reported to date for this lot number and failure mode.Medical records review: the patient with multiple pulmonary embolisms and left femoral deep vein thrombosis had a vena cava filter successfully deployed below the level of the renal veins without incident.Approximately two years post filter deployment, a ct of abdomen and pelvis demonstrated the filter with several of the facets/footplate prongs extending slightly beyond the inferior vena cava (ivc) margin.No acute intra-abdominal or pelvic process was evident.Approximately seven months later, during scheduled retrieval, a cavogram demonstrated at least three of the filter prongs outside of the ivc margin.The filter was successfully retrieved using a snare device.The patient tolerated the procedure well, was admitted for monitoring and discharged three days later.Investigation summary: the device was not returned for evaluation.Images and medical records were provided and reviewed.Based on the image review and the medical records, the investigation can be confirmed for perforation of the ivc.Based upon the available information, the definitive root cause is unknown.Labeling review: the current ifu (instructions for use) states: potential complications: - perforation or other acute or chronic damage of the ivc wall the information provided by bard represents all of the known information at this time.Despite good faith efforts to obtain additional information, the complainant / reporter was unable or unwilling to provide any further patient, product, or procedural details to bard.
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