Covidien releases 12-month results of the DEFINITIVE AR study, the first randomized study designed to identify the clinical benefits of plaque removal using directional atherectomy followed by drug-coated balloon. The results were presented by Professor Thomas Zeller of the Universitaets-Herzzentrum, Bad Krozingen, Germany at the Vascular Interventional Advances (VIVA) 2014 conference in Las Vegas, Nev.
