Table III.

Cardiopulmonary exercise test: comparison of coarctation of aorta patients to control group

Parameter	Study group (n = 58)	Controls (n = 30)	P-value
SBP resting [mm Hg]	136.55 ±16.27	123.47 ±10.34	< 0.001
DBP resting [mm Hg]	74.95 ±12.29	74.83 ±6.91	0.955
% AT predicted	65.07 ±18.34	94.57 ±2.79	< 0.001
Time peak [min]	15.28 ±3.21	16.82 ±2.78	0.027
HR peak [bpm]	157.28 ±22.22	177.93 ±23.08	< 0.001
% HR max	78.81 ±14.72	95.17 ±2.96	< 0.001
VO2/kg peak [ml/kg/min]	29.01 ±8.79	49.16 ±7.38	< 0.001
% VO2/kg predicted	81.91 ±20.81	95.97 ±3.92	< 0.001
RER peak	1.11 ±0.08	1.12 ±0.09	0.415
VE/VCO2 peak	28.18 ±4.69	26.78 ±3.13	0.017
BR peak	45.73 ±23.11	41.76 ±16.95	0.414
MET peak	11.03 ±2.72	12.49 ±0.71	0.005
SBP peak [mm Hg]	174.79 ±17.62	153.33 ±4.79	< 0.001
DBP peak [mm Hg]	77.00 ±14.91	80.00 ±0.21	0.275

BR peak – peak breathing reserve, DBP – diastolic blood pressure, HR peak – heart rate peak, % HR max – percentage of maximal heart rate, SBP – systolic blood pressure, RER peak – peak respiratory exchange ratio, VCO₂ peak – peak carbon dioxide production, VCO₂ rest – carbon dioxide production at rest, VE/VCO₂ peak – peak ventilatory equivalent for CO₂, VO₂/kg AT – oxygen uptake per kg at anaerobic threshold, VO₂/kg peak – peak oxygen uptake per kg, VO₂/kg rest – oxygen uptake per kg at rest, VO₂ peak – peak oxygen uptake, VO₂ rest – oxygen uptake at rest. Data are presented as means with standard deviation (mean ± SD) or as percentage (%) of total number; p-value ≤ 0.05 is considered as statistically significant.