Wang F, et al. - In this monocentric cross-sectional study, researchers determined the association between the number of left atrial appendage (LAA) lobes and left atrial thrombus (LAT)/left atrial spontaneous echo contrast (LASEC) in patients with non-valvular atrial fibrillation (NVAF). Participants had transthoracic echocardiography and transesophageal echocardiography prior to cardioversion or left atrial appendage closure from July 2009 to August 2015 in Shanghai Tenth People’s Hospital. A significantly higher risk of left atrial thrombus or left atrial spontaneous echo contrast was reported in relation to more LAA lobes. The number of LAA lobes was not only identified as an independent risk factor, but also had a moderate prognostic value for LAT/LASEC among NVAF patients in China.