A 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.The medical records allege bard denali filter was implanted in the infrarenal location for a patient.The filter was incompletely expanded during deployment.Approximately eight months later, inferior vena cavagram revealed thrombus extends across the filter suprarenal in location approximately 2 vertebral bodies.Thrombus around the filter and above the filter.Large obstructing clot at the level of the filter.After four years and five months, inferior venacavogram revealed complete occlusion of thrombosed filter.Therefore, the investigation is confirmed for the alleged partial deployment and filter occlusion.Additionally, it can be confirmed that the patient experienced thrombus above the filter 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, and pulmonary embolism.During deployment, the filter was incompletely expanded.Approximately eight months post filter deployment, it was alleged that the filter was occluded completely.The device has not been removed and there were no reported attempts made to retrieve the filter.The patient was diagnosed with thrombus above the filter; however, the current status of the patient is unknown.
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