Additional file 1: Figure S1. of Long-term clinical outcome of patients with severe atherosclerotic renal artery stenosis after percutaneous transluminal renal angioplasty

Changes of serum creatinine levels in patients with a baseline creatinine level > 1.2 mg/dl. Serum creatinine levels of patients with ≥ 95% stenosis were significantly improved at 1 and 2 years after PTRA (p = 0.017, 0.025). In patients with 75 ≤ and < 95% stenosis, serum creatinine did not worsen over 84 months. NS; not significant. ※p < 0.05 vs. the pretreatment level. (PPTX 74 kb)