Table 5.
Discordances between the FCA and SRA results.
| FCA+/SRA− | n = 13 Patients | |||||
| FCA | SRA | EOA HIT Diagnosis | Zymutest® HIT IgG Cut - Off 0.3 | IgG OD | ECC | TE |
| + | − | + | + | 0.7 | Yes | Yes |
| + | − | + | + | 1.7 | Yes | No |
| + | − | + | + | 1.8 | No | No |
| + | − | + | + | 2 | No | No |
| + | − | + | + | 2.2 | No | No |
| + | − | + | + | 2.4 | Yes | No |
| + | − | + | + | 2.4 | Yes | Yes |
| + | − | + | + | 2.6 | Yes | No |
| + | − | − | + | 2.5 | Yes | No |
| + | − | − | − | 0 | No | No |
| + | − | − | − | 0 | No | No |
| + | − | − | − | 0 | Yes | No |
| + | − | − | − | 0.1 | No | No |
| FCA−/SRA+ | n = 9 patients | |||||
| − | + | + | + | 0.7 | Yes | Yes |
| − | + | + | + | 0.7 | Yes | No |
| − | + | + | + | 1.2 | Yes | No |
| − | + | + | + | 1.4 | Yes | No |
| − | + | + | + | 2.1 | Yes | No |
| − | + | + | + | 2.5 | No | Yes |
| − | + | + | + | 2.8 | Yes | No |
| − | + | − | − | 0 | No | No |
| − | + | − | − | 0 | No | No |
FCA: Flow cytometric assay, SRA: Serotonin release assay, EOA: Expert opinion adjudication; HIT: Heparin-induced thrombocytopenia, OD: Optical density, ECC: ExtraCorporeal circulation, TE: Thrombotic event.