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 one year post filter deployment, computed tomography revealed patchy infiltrate involved the superior segment of the left lower lobe.Apparent filling defects within small distal branches of both lower lobe pulmonary arteries consistent with pulmonary emboli.Approximately eight years later, computed tomography revealed the apex of the filter lay within the mid lumen of the inferior vena cava and all the strut tips eroded through the wall of the inferior vena cava and one of which penetrated the abdominal aorta by approximately 3 mm.Therefore, the investigation is confirmed for perforation of the inferior vena cava (ivc).However, the investigation is inconclusive for filter tilt.Additionally, it can be confirmed that the patient experienced pulmonary embolism post deployment.However, the relationship to the filter 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: 12/2010).
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