TanXYangWGuoJet al.Usefulness of decrease in oxygen uptake efficiency to identify gas exchange abnormality in patients with idiopathic pulmonary arterial hypertension. PloS One2014; 9: e98889.
2.
BabaRNagashimaMGotoMet al.Oxygen uptake efficiency slope: a new index of cardiorespiratory functional reserve derived from the relation between oxygen uptake and minute ventilation during incremental exercise. J Am Coll Cardiol1996; 28: 1567–1572.
3.
WassermanKHJSueDYStringerWWet al.Principles of Exercise Testing and Interpretation: Including Pathophysiology and Clinical Applications2005Philadelphia, USA: Wolters Kluwer Health/Lippincott Williams & Wilkins.
4.
SeveringhausJW. Paradoxical relation of mitochondrial PO2 to VO2. Adv Exp Med Biol1999; 471: 595–604.
5.
GuazziMArenaRHalleMet al.2016 Focused Update: clinical recommendations for cardiopulmonary exercise testing data assessment in specific patient populations. Circulation2016; 133: e694–e711.
6.
WagnerJAgostoniPArenaRet al.The role of gas exchange variables in cardiopulmonary exercise testing for risk stratification and management of heart failure with reduced ejection fraction. Am Heart J2018; 202: 116–126.
7.
CorraUAgostoniPGAnkerSDet al.Role of cardiopulmonary exercise testing in clinical stratification in heart failure. A position paper from the Committee on Exercise Physiology and Training of the Heart Failure Association of the European Society of Cardiology. Eur J Heart Fail2018; 20: 3–15.
8.
PonikowskiPVoorsAAAnkerSDet al.2016 ESC Guidelines for the diagnosis and treatment of acute and chronic heart failure: the Task Force for the diagnosis and treatment of acute and chronic heart failure of the European Society of Cardiology (ESC). Developed with the special contribution of the Heart Failure Association (HFA) of the ESC. Eur Heart J2016; 37: 2129–2200.
9.
YancyCWJessupMBozkurtBet al.2017 ACC/AHA/HFSA Focused update of the 2013 ACCF/AHA guideline for the management of heart failure: a report of the American College of Cardiology/American Heart Association Task Force on Clinical Practice Guidelines and the Heart Failure Society of America. Circulation2017; 136: e137–e161.
10.
SunXGHansenJEGaratacheaNet al.Ventilatory efficiency during exercise in healthy subjects. Am J Resp Crit Care Med2002; 166: 1443–1448.
11.
HossriCASouzaIPAde OliveiraJSet al.Assessment of oxygen-uptake efficiency slope in healthy children and children with heart disease: generation of appropriate reference values for the OUES variable. Eur J Prev Cardiol.. 2019; 26: 177–184.