Impact of chronic kidney disease on long-term outcomes for coronary in-stent restenosis after drug-coated balloon angioplasty

Patients with chronic kidney disease (CKD) and coronary instent restenosis (ISR) treated with drug-coated balloon (DCB) angioplasty have been excluded from randomized controlled trials. We aimed to investigate the clinical impact of CKD stratified by severity, on clinical outcomes for patients with ISR treated with DCB angioplasty.This cohort study enrolled 1,376 patients treated with DCB angioplasty; 639 CKD patients defined as having an...