Yatsu S, et al. - In 326 patients undergoing percutaneous coronary intervention for coronary artery disease, researchers determined the prevalence and clinical significance of restless legs syndrome (RLS). They used the Epworth Sleepiness Scale to determine subjective sleepiness, and Pittsburgh Sleep Quality Index and Short Form (SF)-8 to assess sleep quality, and health-related quality of life, respectively among the participants. Overall, 26 (8.0%) coronary artery disease patients had RLS. Among patients with vs without RLS, no marked differences in features were observed. Compared to the prevalence of RLS in the general population, a relatively high RLS prevalence was observed in patients with coronary artery disease. Disrupted sleep quality and health-related quality of life were observed in association with the presence of RLS in coronary artery disease patients.