Aberrant placement of vena cava filters has been documented. Only one case of intraaortic deployment, in which the filter was left at the aortic bifurcation with no adverse effects over a 4-year follow-up period, has been reported. We describe the endovascular retrieval of an intraaortic Greenfield filter using a snare and large sheath to protect the aortic intima from injury during removal of the device.
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Corriere MA, Passman MA, Gunzman RJ, Dattilo JB, Naslund TCRetrieving "nonretrievable" inferior vena caval Greenfield filters: a therapeutic option for filter malpositioning. Ann Vasc Surg. 2004;18:629-634.
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