Manufacturing review: the device history record review 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.A bard denali filter was deployed with its tip at the l1/l2.Approximately four months of post deployment, a computed tomogram angiography study was performed which showed acute pulmonary embolism right upper lobe.Around four months later, a computed tomography of abdomen and pelvis was performed, which showed interval placement of inferior vena cava filter with several of the prongs extending beyond the inferior vena cava lumen.Around two months later, an x-ray abdomen was performed for abdominal pain, which showed inferior vena cava filter was noted at l2 level.A computed tomography angiogram of chest was performed for chest pain.The study showed that mildly limited evaluation for acute pulmonary thromboembolus.Around six months later, a computed tomography of abdomen and pelvis was performed for abdominal pain.The study showed that inferior vena cava filter was noted at the l2 level.One strut from the filter extends into the right gonadal vein.Around twenty-one days later, a computed tomography of abdomen and pelvis was performed for abdominal pain.The study showed that inferior vena cava filter was noted in a stable position with struts again seen extending beyond the wall of the inferior vena cava but without acute inflammatory change.Around seventeen days later, a computed tomography of abdomen and pelvis was performed which showed inferior vena cava filter was noted at the l2-l3 level.Around four months later, a computed tomography of abdomen and pelvis was performed for right lower quadrant abdominal pain.The study showed that inferior vena cava filter was noted at the level of l2-l3.Therefore, the investigation is confirmed for filter migration and perforation of the inferior vena cava (ivc).Additionally, it can be confirmed that the patient experienced pulmonary embolism 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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