• Stuart M Lyon, Guillermo Elizondo Riojas, Raman Uberoi, Jai Patel, Mario Enrique Baltazares Lipp, Graham R Plant, Miguel A De Gregorio, Rolf W Günther, William D Voorhees, and Jennifer A McCann-Brown.
• Department of Radiology, Monash University, Alfred Hospital, Melbourne, Australia.
• J Vasc Interv Radiol. 2009 Nov 1;20(11):1441-8.

PurposeTo evaluate retrievability of the Celect vena cava filter over time and to assess the safety of the retrieval procedure in a prospective multicenter registry.Materials And MethodsBetween October 2005 and March 2008, Celect filters were placed in 95 patients (61 men; mean age, 51 years +/- 18.5) with a temporary need for an inferior vena cava (IVC) filter. All patients satisfied requirements for filter placement; the primary indications for placement were pulmonary embolism (PE) with a contraindication to or failure of anticoagulation (n = 40), high risk for further PE (n = 29), trauma (n = 23), or massive PE with residual deep vein thrombosis and risk for further PE (n = 3). Filter orientation, vena cava injury, and other device-related incidents were evaluated at implantation and retrieval. The degree of difficulty associated with retrieval was also assessed.ResultsFilter retrieval was attempted in 58 patients (mean indwell time of 179 days; median, 168.5 d; range, 5-466 d). Fifty-six filters (96.6%) were successfully retrieved. Unsuccessful retrieval attempts were attributed to filter tilt (n = 1) or excessive tissue growth with the hook embedded in the endothelium (n = 1). No adverse events were associated with the inability to retrieve these filters. A Kaplan-Meier product-limit survival estimate revealed that the probability of successful filter retrieval remained at 100% at 50 weeks and at more than 74% at 55 weeks after implantation. No adverse events were related to the retrieval procedures.ConclusionsRetrieval of the Celect filter was performed safely as long as 466 days after implantation.

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