Fig. 5

Correlation between left atrial thrombosis and left upper pulmonary venous flow velocity (LUPVFV).The patients in our study who had been detected LUPVFV during TEE were divided into four groups by quartiles. In sub-analysis, LUPVFV decelerated, and the incidence of LAT/LASEC rose gradually from the last quartile to the first quartile, but did not reached statistical significance in both male (p = 0.78) and female (p = 0.12) subgroup owing to the small sample size