Low ankle brachial index predicts poor outcomes including target lesion revascularization during the long-term follow up after drug-eluting stent implantation for coronary artery disease

•Low ankle brachial index (ABI) may be a predictor of poor outcomes after drug-eluting stent treatment.•Low ABI was associated with higher incidence of target lesion revascularization.•Low ABI was related to higher rate of major adverse cardiac and cerebrovascular events. Peripheral arterial disease (PAD) frequently coexists with coronary artery disease (CAD). The ankle-brachial index (ABI) is widely used for the screening for PAD. Low ABI is associated with short-term clinical outcomes in patients receiving coronary drug-eluting stent (DES) implantation. However, there is no report to examine the relationship between lower ABI and long-term clinical outcomes after DES implantation. Thus, we investigated the clinical long-term impact of low ABI after DES implantation. This retrospective analysis included 181 CAD patients treated with DES from April 2010 to March 2013 in our institute. Based on ABI values, we divided the subjects into the low-ABI group (ABI