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Pulmonary Embolism and IVC Filters
Inferior vena cava filters are placed in patients with massive DVT and /or in patients who cannot receive systemic anticoagulation.
The question is, can patients develop pulmonary embolism if a filter is already in place? The answer: yes
How does this happen?:
- Clot burden at the site of cava-filter insertion (below the filter). Clots can dislodge at this site and slip through the filter.
- Embolization around the IVC filter via retroperitoneal collaterals.