Table 4. Prediction of blood products and massive transfusion.
| Transfusion | Detection Rate |
FPR | PPV | NPV |
|---|---|---|---|---|
|
| ||||
| Any PRBC | ||||
| PTr >1.2 | 17.5% | 3.9% | 55.0% | 81.0% |
| CA5≤35 mm | 33.3% | 12.1% | 42.9% | 82.9% |
| CT >94 s | 17.7% | 10.8% | 30.6% | 80.2% |
| α angle <65° | 23.8% | 7.4% | 46.8% | 81.6% |
|
Massive
Transfusion |
||||
| PTr >1.2 | 42.9% | 5.9% | 15.0% | 98.4% |
| CA5≤35 mm | 71.4% | 15.3% | 10.2% | 99.2% |
| CT >94 s | 28.6% | 12.2% | 5.4% | 98.1% |
| α angle <65° | 42.9% | 10.1% | 9.4% | 98.5% |
| FFP | ||||
| PTr >1.2 | 21.4% | 4.4% | 45.0% | 88.0% |
| CA5≤35 mm | 35.7% | 13.4% | 30.6% | 89.0% |
| CT >94 s | 14.6% | 11.9% | 16.7% | 86.4% |
| α angle <65° | 26.2% | 8.4% | 34.4% | 88.1% |
Performance of coagulation parameters for the prediction of packed red blood cell (PRBC), Massive Transfusion (10 or more units of PRBC) and fresh frozen plasma (FFP) transfusion using laboratory Prothrombin Time ratio (PTr) and ROTEM: CA5 (Clot Amplitude at 5 minutes), CT (Clotting Time). Detection Rate (Sensitivity); FPR (False Positive Rate: 1-Specificity); PPV (Positive Predictive Value) and NPV (Negative Predictive Value).