| Cytokine | Controls (median, 1st quartile, 3rd quartile) | Pre-PTE (median, 1st quartile, 3rd quartile) | Post-PTE (median, 1st quartile, 3rd quartile) |
| IL-1b | 0.2 (0.1, 0.2) | 0.6 (0.3, 1.3)* | 0.4 (0.3, 0.7) |
| IL-2 | 0.8 (0.4,0.9) | 2.0 (1.2, 4.7)* | 1.5 (1.0, 2.0)† |
| IL-4 | 0.8 (0.6, 1.2) | 2.0 (1.2, 3.3)* | 1.4 (1.0, 2.5) |
| IL-5 | 1.2 (0.7, 1.9) | 1.0 (0.7, 1.5) | 0.7 (0.5, 0.9) |
| IL-8 | 13.8 (10.9, 19.1) | 30.2 (22.3, 41.7)* | 20.0 (14.4, 24.2)† |
| IL-10 | 2.4 (1.6, 5.9) | 5.1 (3.4, 10.4) | 3.7 (2.2, 5.7)† |
| IL-12p70 | 2.8 (1.3, 8.4) | 3.3 (2.0, 7.3) | 2.4 (1.8, 4.6) |
| IL-13 | 5.9 (2.6, 16.5) | 8.9 (6.1, 15.2) | 7.4 (5.6, 9.7) |
| TNF-α | 8.1 (7.1, 8.7) | 7.5 (5.6, 8.8) | 5.7 (4.6, 6.9)† |
| IFN-γ | 1.1 (0.9, 1.4) | 0.6 (0.4, 1.9) | 0.6 (0.3, 0.9) |
*p<0.05, comparing controls with pre-pulmonary thromboendarterectomy (PTE); †p<0.05, comparing values pre and post-PTE.