A 48-year-old woman develops extensive left lower limb deep vein thrombosis three days after major abdominal surgery. Anticoagulation is contraindicated due to recent operative bleeding, and she has significant phlegmasia. An inferior vena cava filter is placed. What is the correct plan regarding this filter?
- A Remove it as soon as anticoagulation can be safely resumed and the thrombotic risk period has passed ✓
- B Leave it permanently and review only if symptoms recur
- C Remove it within 72 hours of insertion in all cases
- D Replace it with a second filter at 6 months for continued protection
Correct answer: A. Remove it as soon as anticoagulation can be safely resumed and the thrombotic risk period has passed
Explanation
Retrievable IVC filters are intended for short-term protection during a window when anticoagulation is impossible. Once anticoagulation becomes safe and feasible, the filter should be retrieved promptly because retained filters carry risks of migration, fracture, perforation of the caval wall, and filter thrombosis. Immediate removal within 72 hours would leave the patient unprotected during her ongoing high-risk period.
Reference: Grainger and Allison's Diagnostic Radiology, 7th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.