MINNEAPOLIS & BERLIN--(BUSINESS WIRE)--Atrial fibrillation (AF) is the most common arrhythmia, affecting an estimated 7 million people worldwide, including 4.5 million in the European Union1,2. Data presented today as a Hot Line session at the EUROPACE 2009 congress on the XPECT clinical trial, sponsored by Medtronic, Inc. (NYSE: MDT), shows that the Medtronic Reveal® XT Insertable Cardiac Monitor (ICM) reliably identifies patients with AF (sensitivity of 96.1 percent) and correctly confirms the absence of AF in patients (negative predictive value of 97.4 percent).