Asb. Yip et al., PERICARDIAL-EFFUSION IN ADULTS UNDERGOING SURGICAL REPAIR OF ATRIAL SEPTAL-DEFECT, The American journal of cardiology, 79(12), 1997, pp. 1706
The incidence of pericardial effusion and tamponade postatrial septal
defect repair in adult patients are 16 and 1.5%, respectively. Small,
medium, and large effusions progressed equally, and echocardiographic
study on days 7, 14, and 28 best detects potentially significant effus
ion.