Abstract
The purpose of this study was to assess the indwelling time and retrievability of the Optease IVC filter. Between 2002 and 2009, a total of 811 Optease filters were inserted: 382 for prophylaxis in multitrauma patients and 429 for patients with venous thromboembolic (VTE) disease. In 139 patients [97 men and 42 women; mean age, 36 (range, 17-82) years], filter retrieval was attempted. They were divided into two groups to compare change in retrieval policy during the years: group A, 60 patients with filter retrievals performed before December 31 2006; and group B, 79 patients with filter retrievals from January 2007 to October 2009. A total of 128 filters were successfully removed (57 in group A, and 71 in group B). The mean filter indwelling time in the study group was 25 (range, 3-122)days. In group A the mean indwelling time was 18 (range, 7-55)days and in group B 31days (range, 8-122). There were 11 retrieval failures: 4 for inability to engage the filter hook and 7 for inability to sheathe the filter due to intimal overgrowth. The mean indwelling time of group A retrieval failures was 16 (range, 15-18)days and in group B 54 (range, 17-122)days. Mean fluoroscopy time for successful retrieval was 3.5 (range, 1-16.6)min and for retrieval failures 25.2 (range, 7.2-62)min. Attempts to retrieve the Optease filter can be performed up to 60days, but more failures will be encountered with this approach.
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