Table 2.
Echocardiographic patient profile
| No pre-existing RV dilatation N = 747 |
Pre-existing RV dilatation N = 243 |
P value | |
|---|---|---|---|
| Pre-pacemaker | |||
| No or mild TR | 579 (77.5%) | 148 (60.9%) | < 0.001 |
| Moderate TR | 131 (17.5%) | 60 (24.7%) | |
| Severe TR | 37 (5.0%) | 35 (14.4%) | |
| Post-pacemaker | |||
| No or mild TR | 476 (63.7%) | 75 (30.9%) | < 0.001 |
| Moderate TR | 216 (28.9%) | 85 (35.0%) | |
| Severe TR | 55 (7.4%) | 83 (34.2%) | |
| Pre-pacemaker | |||
| Left ventricular function | |||
| Normal | 431 (57.8%) | 97 (39.9%) | < 0.001 |
| Mild reduction | 121 (16.2%) | 44 (18.1%) | |
| Moderate reduction | 100 (13.4%) | 35 (14.4%) | |
| Severe reduction | 94 (12.6%) | 67 (27.6%) | |
| Mitral regurgitation | |||
| No or mild | 343 (53.3%) | 61 (32.3%) | < 0.001 |
| Moderate | 254 (39.4%) | 83 (43.9%) | |
| Severe | 47 (7.3%) | 45 (23.8%) | |
| sPAP (mmHg) | 44.7 ± 14.2 | 58.2 ± 17.6 | < 0.001 |
| LVEDD indexed (mm/m2) | 25.4 ± 4.4 | 27.2 ± 5.4 | < 0.001 |
| LA (mm) | 61 ± 10 | 70 ± 11 | < 0.001 |
| RVEDD (mm) | 33 ± 4 | 43 ± 6 | < 0.001 |
| Right ventricular function | |||
| Normal | 598 (85.2%) | 86 (39.4%) | < 0.001 |
| Mild reduction | 76 (10.8%) | 64 (29.4%) | |
| Moderate reduction | 21 (3.0%) | 48 (22.0%) | |
| Severe reduction | 7 (1.0%) | 20 (9.2%) | |
| RA (mm) | 59 ± 10 | 72 ± 45 | < 0.001 |
| TR-Vmax (m/s) | 2.93 ± 0.64 | 3.09 ± 0.65 | 0.004 |
Values are mean ± SD, N (%), or median (interquartile range), unless otherwise indicated. P values < 0.05 in bold
LA left atrium, LVEDD left ventricular end-diastolic diameter, RA right atrium, RV right ventricle, RVEDD right ventricular end-diastolic diameter, sPAP systolic pulmonary artery pressure, TR tricuspid regurgitation, TR-Vmax peak tricuspid regurgitation velocity