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.Medical records were provided and reviewed.Approximately five months later, the patient presented to the hospital with chest pain, a computed tomography angio (cta) chest with contrast was performed and it revealed small non-occlusive pulmonary embolism with a sub segmental branch involving the posterior basal segment of the left lower lobe.Embolized fractured inferior vena cava filter strut within a segmental branch to the anterior basal segment of the right lower lobe.An x-ray abdomen one view was performed, and it revealed there was missing one leg without the claw.Thus, the radiopaque density seen in the right chest likely is a leg of the inferior vena cava filter.An x-ray chest 1 view was performed, and it revealed linear metallic densities are seen over the right lower lobe.Therefore, the investigation is confirmed for alleged filter detachment.However, the investigation is inconclusive for the perforation of the ivc.Additionally, it can be confirmed that the patient experienced pe post-deployment.However, the relationship to the filter is unknown.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.
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It was reported through the litigation process that a vena cava filter was placed in a patient after being diagnosed with deep vein thrombosis/pulmonary embolism.At some time post filter deployment, it was alleged that the filter struts detached, perforated into the organs.The device has not been removed and there were no reported attempts made to retrieve the filter.It was further reported that the detached strut retained in right lower lung.The current status of the patient is unknown.
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