Manufacturing review: a lot history review was performed.This is the only complaint to date for this lot number.Therefore, a device history record review is not required.Investigation summary: the device was not returned for evaluation.The medical records included images.The image review was documented in the medical records.Medical records were provided and reviewed.Approximately after seven year a computed tomography (ct) show the inferior vena cava filter was at inferior tilted to right.There was a possible migration, but no migration compared to computed tomography (ct) previously.There was a significant tilt with 38 degrees to right as per coronal images and 16-degrees ventrally as per sagittal images.Left lateral strut had entered left renal vein.Right lateral strut was abutting ventral aspect right renal vein.There was grade 3 perforation with ventral strut abuts duodenum with 6mm and left posterolateral strut abuts aorta with 6mm.Therefore, the investigation is confirmed for the perforation of the ivc filter and filter tilt.However the investigation was inconclusive for the migration of the inferior vena cava (ivc) filter as it was stated "there was a possible migration, but no migration compared to computed tomography (ct) previously".Based on 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.(expiry date: 09/2012).
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It was reported through the litigation process that a vena cava filter was placed in a patient in conjunction with trauma situation/motor vehicle accident.At some time post filter deployment, it was alleged that filter tilted, migrated and struts perforated into organs.The device has not been removed and there were no reported attempts made to retrieve the filter.The patient reportedly experienced abdominal pain; however, the current status of the patient is unknown.
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