“…There are two major types: retrievable and permanent 6. Since their introduction in the late 1990’s, the placement of retrievable IVCFs has risen in part due to reportedly lower complication rates than permanent filters, which associated with an increased incidence of recurrent DVTs, filter migration, caval wall perforation, thrombosis, infection, pulmonary emboli and filter fracture 2 4–9. Despite limited evidence supporting their ability to truly prevent life-threatening pulmonary emboli, and association instead, with recurrent DVTs, IVCFs continue to be placed in patients with absolute contraindications to anticoagulation 10 11.…”