A-fib (IMAGE) Intermountain Medical Center Caption Findings from a large, community-based study show that antithrombotic therapy doesn't decrease low-risk atrial fibrillation patients' risk of suffering a stroke within five years. In fact, researchers found that low-risk patients fared better without any antithrombotic therapy. Credit Intermountain Medical Center Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.