Table 3. Correlation between Intraoperative Hemostatic Assays and Measures of Clinical Coagulopathy after Cardiopulmonary Bypass

Nonparametric Spearman correlation was used to determine the strength of the relations between hemostatic assays (obtained 5 min after protamine administration) and the number of platelet (packs) and fresh frozen plasma (FFP; units) transfusions. Similar analysis was used to determine the relation between hemostatic assays and postoperative chest tube drainage at the indicated time points. In each case, data are presented as Spearman ρ followed by P  value in parentheses.

* Statistically significant results.

OR = operating room; ICU = intensive care unit; CITF = collagen-induced thrombus formation; PHT = platelet hemostasis time; CT = clotting time; ACT = activated clotting time; PLT = platelet count; PT = prothrombin time; aPTT = activated partial thromboplastin time; FGN = fibrinogen concentration.