Gao W, Chen Y, Yang H, et al. - Researchers sought to determine the impacts of accumulated experience on rotational atherectomy (RA) operation concerning in‐hospital results in the drug‐eluting stent (DES) era. They retrospectively analyzed 540 de novo lesions with calcified coronary lesions managed by RA and DES implantation. All cause death, cardiac death, target vessel revascularization, and stroke, all defined in‐hospital major adverse cardiac events (MACE). Along with the rapid increment of RA use and gathered experience, rates of complications as well as MACE were shown to go up first and then fell down. An independent risk for procedural complications was conferred by hypertension. Heart failure and procedural complications were revealed as independent risk factors for in‐hospital MACE.