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 and twenty-seven days later, the patient was positive for abdominal pain.Approximately six years and one month later, the patient reported to the hospital with abdominal pain and computed tomography (ct) revealed that there was an infrarenal inferior vena cava filter.Approximately one week and one day later a venous duplex lower extremity bilateral showed that on both right and left, there were evidences of occlusive, acute deep vein thrombosis in the common femoral, femoral in proximal thigh, popliteal, posterior tibial and peroneal veins.Subsequently two days later, venous duplex showed that there was evidence of occlusive, acute deep vein thrombosis in the common femoral, femoral in proximal thigh, popliteal, posterior tibial and peroneal veins bilaterally.Approximately eight months and twenty-two days later, computed tomography (ct) revealed that the inferior vena cava filter was mildly tilted posteriorly 5-degrees.The apex of the inferior vena cava filter was less than 2 cm below the most inferior renal vein.The inferior vena cava filter strut penetrated approximately 6 mm.There were no fractured or bent struts.Overall, the vena cava was diminutive and could be thrombosed.Therefore, the investigation is confirmed for alleged perforation of the inferior vena cava (ivc).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.The current instructions for use states: the safety and effectiveness of this device has not been established for morbidly obese patients.Open abdominal procedures such as bariatric surgery may affect the integrity and stability of the filter.(expiry date: 08/2013).
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