Endovascular Treatment of Aneurysms of the Popliteal Artery

Abstract

the location of steno-occlusions, the existence of diabetes mellitus, and the history of central catheter. Results: Stents were implanted in 294 patients in 1016 procedures. All but one of the procedures was technically successful (99.7%). The one patient with an unsuccessful procedure was due to incomplete stent expansion. Two stent migrations were occurred as major complication without other. The primary patency rate for 6, 12, 24, and 36 months was 44%, 18%, 5%, and 2%, respectively (mean: 7.9 months). Repeat interventions, including additional balloon angioplasty and stent placement, were required in 172 patients (average: 2.54). There was no statistic difference except the history of central catheter (P = 0.0128). The secondary patency rate for 6, 12, 24, 36, 48, and 60 months was 80%, 67%, 42%, 37%, 30%, and 20%, respectively. Conclusion: Percutaneous central venous stent implantation in hemodialysis patients is useful in patients with suboptimal angioplasty and it was safe and effective to restore the hemodialysis function. However, repeat interventions are usually required to prolong the stent patency.