Regarding 'outcomes of covered versus bare-metal balloon-expandable stents for aortoiliac occlusive disease'

摘要

With interest we have read the paper by Humphries et al, who have performed a retrospective cohort study comparing outcome of bare-metal stents (BMSs) with balloon-expandable covered (CBE) stents.1 They concluded that BMSs are superior to CBE stents at 3 years in the treatment of aortoiliac occlusive disease. This is in conflict with other studies, including the Covered Versus Balloon Expandable Stent Trial (COBEST), which is the only published randomized trial of CBE stents for aortoiliac occlusive disease to date, and another historical cohort study. Both showed significandy better results in terms of restenosis and reinterventions in the use of CBE stents, especially in more complex lesions. '