Table 3.
Comparison of data of echocardiography and cardiopulmonary exercise testing between high‐PVC burden and low‐PVC burden
|
Low‐PVC burden (≤0.145%/d) (N = 241) |
High‐PVC burden (>0.145%/d) (N = 194) |
P value | |
|---|---|---|---|
| Holter monitoring | |||
| NSVT | 30 (12.4%) | 109 (56.1%) | <.001 |
| Multifocal PVCs | 188 (78.0%) | 187 (96.3%) | <.001 |
| Echocardiography | |||
| IVST (mm) | 11.4 ± 3.2 | 11.1 ± 2.6 | .340 |
| LVEDD (mm) | 50.6 ± 10.2 | 57.5 ± 11.3 | <.001 |
| LVESD (mm) | 36.7 ± 11.9 | 45.4 ± 12.9 | <.001 |
| PWT (mm) | 11.1 ± 2.5 | 11.2 ± 3.3 | .965 |
| LVEF (%) | 49.9 ± 16.6 | 41.2 ± 15.3 | <.001 |
| LAD (mm) | 42.2 ± 8.2 | 45.4 ± 9.9 | .001 |
| Cardiopulmonary exercise testing | |||
| Peak VO2 (ml·kg−1·min−1) | 16.4 ± 5.0 | 15.0 ± 3.9 | .021 |
| VE/ VCO2 slope | 32.9 ± 7.7 | 34.3 ± 6.9 | .173 |
Abbreviations: IVST, interventricular septum thickness; LAD, left atrial diameter; LVEDD, left ventricular end‐diastolic diameter; LVEF, left ventricular ejection fraction; LVESD, left ventricular end‐systolic diameter; NSVT, non‐sustained ventricular tachycardia; peak VO2, peak oxygen uptake, and VE/ VCO2 slope, rate of increase in ventilation per unit increase in carbon dioxide; PVC, premature ventricular complex; PWT, posterior wall thickness.