Influence of Stent Fracture on the Long-Term Patency in the Femoro-Popliteal ArteryExperience of 4 Years
Osamu Iida, MD,
Shinsuke Nanto, MD, PhD*,
Masaaki Uematsu, MD, PhD,
Kuniyasu Ikeoka, MD,
Shin Okamoto, MD,
Seiki Nagata, MD, PhD
Kansai Rosai Hospital, Hyogo, Japan
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Figure 1 Primary Patency per Limb in 333 Limbs in Patients Who Underwent Endovascular Therapy for De Novo Lesions in the Femoro-Popliteal Artery With Nitinol Stents
Patency decreased in the first 2 years, but it did not apparently changed beyond 2 years. SE = standard error.
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Figure 2 Primary Patency per Limbs in Those Associated With and Without Stent Fracture
Although the study lacks statistical power to confirm, stent fracture unlikely affected patency beyond 2 years. SE = standard error.
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Figure 3 Comparison of Primary Patency per Limbs Among Those Showing Different Morphology of Stent Fracture
Compared with the nonfracture group (type 0), type 2 stent fracture revealed poor patency (p < 0.01). Neither type 1 (p = 0.68) nor type 3 (p = 0.18) affected the primary patency. SE = standard error.
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