Atrial fibrillation is an irregular and often rapid heart rate

Paul L. Hess, MD, MHS; Jeff S. Healey, MD, MSc; Christopher B. Granger, MD; Stuart J. Connolly, MD, MS; Paul D. Ziegler, MS; John H. Alexander, MD, MHS; Peter R. Kowey, MD; Christian T. Ruff, MD, MPH; Greg Flaker, MD; Jonathan L. Halperin, MD; Robert G. Hart, MD; Renato D. Lopes, MD, PhD, MHS