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Iliac artery tortuosity can be a limiting factor in treating abdominal aortic aneurysms by endovascular means. In this case, a 6F catheter guiding sheath was used to allow tracking of the superstiff wire to straighten the iliac artery on the left. This allowed for tracking of the larger sheath so that a bifurcated device could be completed. This technique may be useful in dealing with extreme iliac tortuosity if one is unable to advance the superstiff wire.
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Rahimi et al. (2010) studied this question.
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