As. Prabhu et al., DECREASED INCIDENCE OF POSTOPERATIVE PERICARDIAL-EFFUSIONS AFTER CARDIAC-SURGERY FOR CONGENITAL HEART-DISEASE, The American journal of cardiology, 77(9), 1996, pp. 774
There has been a striking decrease in the incidence of postoperative p
ericardial effusion to 13.6%. A higher incidence of postoperative peri
cardial effusion was found in the winter months.