Mechanisms of Günther Tulip filter tilting during transfemoral placement

Matsui, Yusuke; Horikawa, Masahiro; Ohta, Kengo; Jahangiri, Younes; Kaufman, John A.; Farsad, Khashayar

doi:10.1016/j.diii.2017.01.009

Cited by 5 publications

(2 citation statements)

References 19 publications

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“…In this study, for transfemoral access, the bent wire technique had a lower filter tilt ratio than did the original push or hydrophilic stiff wire techniques. The angle between the IVC and the iliac vein affects filter tilting at deployment [23][24][25]. The bentwire technique reduces the angle and allows the filter tip to be positioned in the center of the IVC lumen, as illustrated in Fig.…”

Section: Discussionmentioning

confidence: 99%

Over-the-wire deployment techniques of option elite inferior vena cava filter: 3D printing vena cava phantom study

Park

Seo

Lee

et al. 2020

European Journal of Radiology Open

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To compare filter tilt and filter jumping during Option inferior vena cava (IVC) filter deployment with 3 different wires techniques using a 3-dimensional (3D) printing vena cava phantom. Materials and methods: An IVC 3D printed vena cava phantom was made from a healthy young male's computed tomographic data. Option IVC filters were deployed with 3 different wires: i) original push wire, ii) hydrophilic stiff wire, and iii) bent stiff wire. Right internal jugular and right femoral access were used 5 times with each wire. Filter tilt angle, tilt ratio, jumping, and tip abutment to the IVC wall were analyzed. Results: The transfemoral approach with original push wire had significantly higher tilt angle than did the transjugular approach (6.1˚± 1.9 vs. 3.5˚± 1.3, p = 0.04). Mean tilt ratio was significantly lower with the bent wire with transfemoral access (0.49 ± 0.13 vs. 0.78 ± 0.18 [original push-wire] and 0.67 ± 0.08 [stiff wire], p = 0.019). The ratio was lower also with original push wire with transjugular access (0.34 ± 0.19 vs. 0.57 ± 0.11 [stiff wire] and 0.58 ± 0.17 [bent wire], p = 0.045). Filter jumping occurred more often with the transjugular approach with original push wire than with stiff or bent-wire delivery. Filter tip abutment to the IVC wall occurred only with the transfemoral approach. Conclusions: Bent wire with transfemoral access and original push wire with transjugular access had lower filter tilt ratio at Option IVC filter deployment. However, filter jumping was common using the original push wire with transjugular access.

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Section: Discussionmentioning

confidence: 99%

Over-the-wire deployment techniques of option elite inferior vena cava filter: 3D printing vena cava phantom study

Park

Seo

Lee

et al. 2020

European Journal of Radiology Open

View full text Add to dashboard Cite

show abstract

“…Another recent study also investigated IVC filter positional parameters, and demonstrated that net filter tilt (defined as the difference in angulation from placement to retrieval) is associated with filter retrieval outcome (8). In addition, studies have examined the hemodynamic effects of lateral tilt, effect of tilt on filtration, and deployment techniques to minimize tilt during filter placement (9)(10)(11). However, the direct association of outcomes and placement lateral tilt have not been previously well studied.…”

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confidence: 99%