Figure 2 ♦.

(A) Primary patency for lesions ≤150 mm; there was no significant difference in 1-year primary patency. For lesions >150 mm (B), nitinol stent placement was associated with improved 1-year primary patency (p=0.006). (C) Assisted primary patency was similar at 1 year for lesions ≤150 mm and (D) significantly higher (p=0.001) for stent placement in lesions >150 mm. (E) In lesions ≤150 mm, secondary patency did not differ for balloon angioplasty vs. stent placement at 1 year. For lesions >150 mm (F), balloon angioplasty was associated with significantly lower (p=0.004) secondary patency.