IMAGE Left atrial appendage thrombus post LARIAT closure device David F. Briceno, MD, * Rajeev R. Fernando, MD, † Susan T. Laing, MD, FACC † From the * Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas, and † Division of Cardiovascular Medicine, Department of Internal Medicine, University of Texas Health Science Center at Houston, Houston, Texas. Embolic stroke remains one of the most severe compli- cations of atrial fibrillation, and anticoagulation has been a problematic therapeutic option for several years. Recently, the development of alternative methods for stroke preven- tion, such as left atrial appendage (LAA) percutaneous closure, has been introduced, but its long-term efficacy and safety remain unknown. Figure 1 KEYWORDS Left atrial appendage; LARIAT; Thrombus; Complications; Atrial fibrillation ABBREVIATIONS LAA ¼ left atrial appendage; TEE ¼ transesophageal echocardiogram (Heart Rhythm 2014;0:1–2) Address reprint requests and correspondence: David F. Briceno, Department of Internal Medicine, University of Texas Health Science Center at Houston, 6431 Fannin, MSB 1.134, Houston, TX 77030. E-mail address: david.f.bricenogomez@uth.tmc.edu. 1547-5271/$-see front matter B 2014 Heart Rhythm Society. All rights reserved. http://dx.doi.org/10.1016/j.hrthm.2013.10.053