title: Günter tulip filter retrieval experience: predictors of successful retrieval.
abstract: We report our experience with Günter Tulip filter placement indications, retrievals, and procedural problems, with emphasis on alternative retrieval techniques. We have identified 92 consecutive patients in whom a Günter Tulip filter was placed and filter removal attempted. We recorded patient demographic information, filter placement and retrieval indications, procedures, standard and nonstandard filter retrieval techniques, complications, and clinical outcomes. The mean time to retrieval for those who experienced filter strut penetration was statistically significant [F(1,90) = 8.55, p = 0.004]. Filter strut(s) IVC penetration and successful retrieval were found to be statistically significant (p = 0.043). The filter hook-IVC relationship correlated with successful retrieval. A modified guidewire loop technique was applied in 8 of 10 cases where the hook appeared to penetrate the IVC wall and could not be engaged with a loop snare catheter, providing additional technical success in 6 of 8 (75%). Therefore, the total filter retrieval success increased from 88 to 95%. In conclusion, the Günter Tulip filter has high successful retrieval rates with low rates of complication. Additional maneuvers such as a guidewire loop method can be used to improve retrieval success rates when the filter hook is endothelialized.
authors.affiliation: Department of Radiology, University of Virginia, Health System Foundation, Lee Street, Box 800170, Charlottesville, VA 22908, USA. uct5d@virginia.edu
authors.forename: Ulku Cenk
authors.initials: UC
authors.lastname: Turba
authors.forename: Bulent
authors.initials: B
authors.lastname: Arslan
authors.forename: Michael
authors.initials: M
authors.lastname: Meuse
authors.forename: Saher
authors.initials: S
authors.lastname: Sabri
authors.forename: Barbara Gail
authors.initials: BG
authors.lastname: Macik
authors.forename: Klaus D
authors.initials: KD
authors.lastname: Hagspiel
authors.forename: Alan H
authors.initials: AH
authors.lastname: Matsumoto
authors.forename: John F
authors.initials: JF
authors.lastname: Angle
mesh_terms: D000328:Adult; D000368:Aged; D000704:Analysis of Variance; D020878:Device Removal; D005260:Female; D005268:Femoral Vein; D005471:Fluoroscopy / Q000379:methods; D005500:Follow-Up Studies; D006801:Humans; D007601:Jugular Veins; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D013997:Time Factors; D016306:Vena Cava Filters; D014682:Vena Cava, Inferior / Q000000981:diagnostic imaging*