Table 2.
Comparison of cardiopulmonary testing and pulmonary function testing.
| Group A | Group B | Control group | P-value | |
|---|---|---|---|---|
| AT MET | 6.44 ± 0.58 | 6.28 ± 0.47 | 6.92 ± 0.39 | 0.110 |
| AT HR, bpm | 138.84 ± 4.50 | 141.12 ± 3.43 | 143.35 ± 2.32 | 0.124 |
| Peak VE, L | 41.10 ± 4.70 | 40.83 ± 4.32 | 44.09 ± 3.03 | 0.366 |
| Peak MET | 9.32 ± 0.74 | 9.13 ± 0.63 | 9.80 ± 0.52 | 0.263 |
| Peak HR, bpm | 174.88 ± 5.01 | 177.78 ± 3.43 | 178.67 ± 1.66 | 0.196 |
| Peak RER | 1.14 ± 0.04 | 1.18 ± 0.04 | 1.21 ± 0.02 | 0.001* |
| Peak SBP, mmHg | 164.02 ± 11.03 | 163.51 ± 8.58 | 164.86 ± 7.15 | 0.974 |
| Peak DBP, mmHg | 84.42 ± 7.63 | 85.12 ± 6.64 | 83.88 ± 4.27 | 0.954 |
| HRR at 1 min, bpm | 28.04 ± 4.70 | 26.44 ± 3.43 | 26.10 ± 2.42 | 0.718 |
| Peak VO2, ml/kg/min | 32.63 ± 8.38 | 31.95 ± 7.12 | 34.30 ± 8.47 | 0.263 |
| mph at peak exercise | 3.09 ± 1.48 | 2.83 ± 1.45 | 3.32 ± 1.21 | 0.201 |
| Grade at peak exercise, % | 13.26 ± 3.92 | 12.91 ± 2.67 | 14.31 ± 3.26 | 0.074 |
| FVC, L | 2.56 ± 0.39 | 2.39 ± 0.28 | 2.39 ± 0.17 | 0.484 |
| FVE1, L | 2.43 ± 0.34 | 2.36 ± 0.59 | 2.23 ± 0.16 | 0.638 |
| FEV1/FVC, % | 86.58 ± 3.96 | 88.71 ± 2.59 | 90.47 ± 1.76 | 0.095 |
| MVV, L | 55.08 ± 7.79 | 50.91 ± 6.70 | 60.00 ± 5.16 | 0.123 |
AT, anaerobic threshold; AT MET, metabolic equivalent at the point of anaerobic threshold; DBP, diastolic blood pressure; HR, heart rate; HRR, heart rate recovery; Peak MET, maximal metabolic equivalent during exercise testing; RER, respiratory exchange threshold; SBP, systolic blood pressure; mph, mile per hour; FVC, forced vital capacity; FVE1, forced expiratory volume in 1 s; MVV, maximal voluntary ventilation.
*
p-value < 0.05. Group A, children with pulmonary stenosis receiving BPV; Group B, children with pulmonary stenosis simply receiving follow-up care.