Abbreviations
Cardiopulmonary exercise testing (CPET)
Initial clinical evaluation (ICE)
Peak oxygen uptake ( O2PEAK)
Ventilatory equivalent for carbon dioxide ( E/ CO2)
Oxygen uptake efficiency slope (OUES)
Pulmonary oxygen uptake at the anaerobic threshold ( O2-AT)
BMI (body mass index)
FVC (forced vital capacity)
FEV1 (forced expiratory volume in one second)
ASA (American Society of Anaesthesiologists score)