Table 5.
Echocardiographic features after HTX
| Parameter | All (n = 639) | No cRBBB ≤ 30 days after HTX (n = 500) | cRBBB ≤ 30 days after HTX (n = 139) | Difference | 95% CI | P‐value |
|---|---|---|---|---|---|---|
| 30‐day end‐diastolic diameter | ||||||
| Normal RA (<35 mm), n (%) | 359 (56.2%) | 294 (58.8%) | 65 (46.8%) | 12.0% | 2.7%–21.3% | 0.01* |
| Normal RV (<30 mm), n (%) | 523 (81.8%) | 438 (87.6%) | 85 (61.2%) | 26.4% | 17.8%–35.0% | <0.01* |
| Normal LA (<40 mm), n (%) | 321 (50.2%) | 256 (51.2%) | 65 (46.8%) | 4.4% | −5.0%–13.8% | 0.35 |
| Normal LV (<55 mm), n (%) | 589 (92.2%) | 485 (97.0%) | 104 (74.8%) | 22.2% | 14.8%–29.6% | <0.01* |
| 30‐day RV function | ||||||
| Normal, n (%) | 515 (80.6%) | 441 (88.2%) | 74 (53.2%) | 35.0% | 26.2%–43.8% | <0.01* |
| Reduced, n (%) | 124 (19.4%) | 59 (11.8%) | 65 (46.8%) | 35.0% | 26.2%–43.8% | <0.01* |
| Mild, n (%) | 51 (8.0%) | 35 (7.0%) | 16 (11.5%) | 3.5% | ||
| Moderate, n (%) | 17 (2.7%) | 11 (2.2%) | 6 (4.3%) | 2.1% | ||
| Severe, n (%) | 56 (8.7%) | 13 (2.6%) | 43 (31.0%) | 28.4% | ||
| 30‐day LV function | ||||||
| Normal, n (%) | 579 (90.6%) | 477 (95.4%) | 102 (73.4%) | 22.0% | 14.4%–29.6% | 0.01* |
| Reduced, n (%) | 60 (9.4%) | 23 (4.6%) | 37 (26.6%) | 22.0% | 14.4%–29.6% | <0.01* |
| Mild, n (%) | 19 (3.0%) | 15 (3.0%) | 4 (2.9%) | 0.1% | ||
| Moderate, n (%) | 9 (1.4%) | 3 (0.6%) | 6 (4.3%) | 3.7% | ||
| Severe, n (%) | 32 (5.0%) | 5 (1.0%) | 27 (19.4%) | 18.4% | ||
| 30‐day tricuspid regurgitation | ||||||
| No, n (%) | 406 (63.5%) | 349 (69.8%) | 57 (41.0%) | 28.8% | 19.7%–37.9% | <0.01* |
| Yes, n (%) | 233 (36.5%) | 151 (30.2%) | 82 (59.0%) | 28.8% | 19.7%–37.9% | <0.01* |
| Mild, n (%) | 134 (21.0%) | 104 (20.8%) | 30 (21.6%) | 0.8% | ||
| Moderate, n (%) | 62 (9.7%) | 36 (7.2%) | 26 (18.7%) | 11.5% | ||
| Severe, n (%) | 37 (5.8%) | 11 (2.2%) | 26 (18.7%) | 16.5% | ||
| 30‐day mitral regurgitation | ||||||
| No, n (%) | 477 (74.6%) | 399 (79.8%) | 78 (56.1%) | 23.7% | 14.7%–32.7% | <0.01* |
| Yes, n (%) | 162 (25.4%) | 101 (20.2%) | 61 (43.9%) | 23.7% | 14.7%–32.7% | <0.01* |
| Mild, n (%) | 153 (23.9%) | 97 (19.4%) | 56 (40.3%) | 20.9% | ||
| Moderate, n (%) | 8 (1.3%) | 3 (0.6%) | 5 (3.6%) | 3.0% | ||
| Severe, n (%) | 1 (0.2%) | 1 (0.2%) | 0 (0.0%) | 0.2% |
CI, confidence interval; cRBBB, complete right bundle branch block; HTX, heart transplantation; LA, left atrium; LV, left ventricle; n, number; RA, right atrium; RV, right ventricle.
*
Statistically significant at P < 0.05.