Table 2.
Prevalence of radiological signs of chronic thrombi and PH, and of the six predefined independent predictors for a future CTEPH diagnosis after acute PE
| Total study population (n = 341) | CTEPH diagnosis confirmed (n = 9) | CTEPH ruled out (n = 332) | |
|---|---|---|---|
| Signs of chronic thrombi present (n, %) | 74 (22) | 6 (67) | 68 (20) |
| Signs of PH present (n, %) * | 104 (30) | 8 (89) | 96 (29) |
| Predefined radiological predictors of CTEPH (n, %) | |||
| Intravascular webs | 41 (12) | 5 (56) | 36 (11) |
| Arterial retraction | 41 (12) | 5 (56) | 36 (11) |
| Dilated bronchial arteries | 24 (7.0) | 3 (33) | 21 (6) |
| Dilatation of the pulmonary trunk | 119 (35) | 7 (78) | 112 (34) |
| RV hypertrophy | 19 (5.6) | 2 (22) | 17 (5) |
| Flattening of the interventricular septum | 84 (25) | 3 (33) | 81 (24) |
Notes: *Concerns direct and indirect signs of chronic RV overload
Abbreviations: CTEPH, chronic thromboembolic pulmonary hypertension; OR, odds ratio; RV, right ventricle; 95%CI, 95% confidence interval