Abstract No. 647 Denali, Tulip, and Option inferior vena cava filter retrieval: a single-center experience

Compare the technical success and ease of filter retrieval in Denali, Tulip, and Option/Option elite inferior vena cava filters. A retrospective comparative, institutional review board-approved study of Denali, Gunther Tulip, and Option/Option Elite IVC filters was conducted over a 49-month period at a single institution. Retrieval failure rates, fluoroscopy time, sedation time, use of advanced retrieval techniques, and filter related complications that led to filter retrieval failure were recorded. Analysis was performed using a logistic regression model, analysis of variance (ANOVA) or Kruskal-Wallis test. Adjustment for multiple pair-wise comparisons used a Tukey post-hoc adjustment or Dwass, Steel, Critchlow-Fligner method. There were 107 Denali, 43 Option, and 39 Tulip filters deployed and removed. with an average dwell time of 93.5 days, 86.0 days, and 131 days, respectively which was significantly different however controlled for in the analysis. Retrieval failure rates were 0.9% for Denali, 11.6% for Option, and 5.1% for Tulip filters (Denali vs. Option p = .018; Denali vs. Tulip p = .159; Tulip vs. Option p = .045). Retrieval failure was due to or in combination of the following factors: filter hook embedment, filter tilt, or caval wall penetration. Median fluoroscopy time for filter retrieval was 3.2 minutes for the Denali filter, 6.75 minutes for the Option filter, and 4.95 minutes for the Tulip filter (Denali vs. Option p