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Table 2 Results of patients’ cardiopulmonary exercise testing of patients who did not undergo PVR

From: Long-term follow-up in adults after tetralogy of Fallot repair

CPET variable Mean value ± SD (n = 83) Group 1 < 25 years since repair (n = 43) Group 2 ≥ 25 years since repair (n = 40) p value
T [min] 16.3 ± 3.3.4 16.9 ± 3.6 15.5 ± 2.8 0.08
HR peak [beat/min] 157 ± 29 164 ± 29 146 ± 26 < 0.001
HR peak [%N] 70 ± 33 71 ± 29 69 ± 35 0.27
SBP peak [mmHg] 141 ± 23 141 ± 18 141 ± 30 0.96
DBP peak [mmHg] 73 ± 12 71 ± 12 75 ± 12 0.23
VO2 peak 1.8 ± 0.7 1.9 ± 0.7 1.7 ± 0.6 0.42
VO2 peak [%N] 69.1 ± 23.0 67.1 ± 23.5 72.0 ± 22.3 0.39
VO2/kg peak [ml/min*kg] 27.6 ± 8.2 28.6 ± 8.6 25.9 ± 7.5 0.18
VO2max/kg [%N] 76.3 ± 22.1 73.4 ± 22.3 80.5 ± 21.5 0.19
VCO2 peak 2.0 ± 0.8 2.0 ± 0.9 1.9 ± 0.7 0.34
VCO2 peak [%N] 57.5 ± 18.3 56.8 ± 19.5 58.4 ± 16.8 0.72
RER peak 1.1 ± 0.2 1.1 ± 0.2 1.1 ± 0.1 0.84
  1. T Time, HR Heart rate, SBP Systolic blood pressure, DBP Diastolic blood pressure, VO2peak Peak oxygen uptake, VO2peak/kg Peak oxygen uptake per kilogram, VCO2peak Peak carbon dioxide uptake, RER Respiratory exchange ratio