Figure 1. Relation (r = -0.82) between channel 6 (Ch6) clot ratio values (percent of maximal) obtained after arrival to the intensive care unit and cumulative mediastinal chest tube drainage in the first 4 postoperative (Postop) hours; clot ratio values displayed are in patients who did not receive desmopressin acetate or platelets in the perioperative interval (n = 83). See text for linear equation.