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.Approximately four years ten months later, computed tomography revealed acute pulmonary emboli in the pulmonary artery branches to the right upper lobe.Approximately nine years later, computed tomography revealed infrarenal inferior vena cava filter in place with the tip just below the lowest right renal vein.There was a tilt to the inferior vena cava filter with the apex abutting the anterior wall of the inferior vena cava.There are 5 intact struts of the inferior vena cava filter.There was perforation of a posterior strut which extends to involve the right psoas muscle.There was perforation of a right posterolateral strut which minimally extends into the fat surrounding the inferior vena cava.There was perforation of a left lateral strut which extends to involve the abdominal aorta.Therefore, the investigation is confirmed for the perforation of the inferior vena cava (ivc) and filter tilt.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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It was reported through the litigation process that a vena cava filter was placed in a patient after being diagnosed with deep vein thrombosis and pulmonary embolism.At some time post filter deployment, it was alleged that the filter struts perforated and tilted.The device has not been removed and there were no reported attempts made to retrieve the filter.The patient was diagnosed with pulmonary embolism post filter implant.However, the current status of the patient is unknown.
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