scholarly journals Oxygen consumption trajectory flattening-yet another cardiopulmonary exercise testing parameter in chronic heart failure

2018 ◽  
Vol 20 (7) ◽  
pp. 1125-1127 ◽  
Author(s):  
Franz Xaver Kleber ◽  
Philine Jascha Köln
Keyword(s):  
Heart Failure ◽  
Oxygen Consumption ◽  
Chronic Heart Failure ◽  
Exercise Testing ◽  
Cardiopulmonary Exercise Testing ◽  
Cardiopulmonary Exercise ◽  
Testing Parameter

scholarly journals Similarity between predicted and obtained oxygen consumption during incremental cardiopulmonary exercise test in healthy men and chronic heart failure patients

2020 ◽  
Vol 27 (3) ◽  
pp. 228-235
Author(s):  
Rafael Santiago Floriano ◽  
Alexandre Fenley ◽  
Daniel Sobral Teixeira ◽  
Leonardo da Costa Silva ◽  
Hugo Valverde Reis ◽  
...  
Keyword(s):  
Heart Failure ◽  
Older Adults ◽  
Oxygen Consumption ◽  
Chronic Heart Failure ◽  
Evaluation Method ◽  
Cardiopulmonary Exercise Testing ◽  
Prediction Equation ◽  
Peak Exercise ◽  
Healthy Men ◽  
Cardiopulmonary Exercise

ABSTRACT Cardiopulmonary exercise testing (CPX) is a noninvasive method for assessing physiological changes during physical exercise. Functional capacity has been evaluated using prediction equations. However, this evaluation method may yield different outcomes when applied to a healthy male population and patients with chronic heart failure (HF). This study aimed to compare the estimated and obtained values of oxygen consumption (VO2) during CPX both at the ventilatory anaerobic threshold (VAT) and at peak exercise for healthy men and HF patients. For that, 56 men were divided into 3 groups: (1) 18 young and healthy (YG) (27±6.01 years); (2) 14 healthy older adults (OG) (61±6.3 years); and (3) 24 chronic HF patients (HFG) (53±13.6 years). CPX in cycle ergometer was administered to all individuals for determining VO2 at the VAT and peak exercise. Then, VO2 was estimated at the two moments using a prediction equation, and estimated values were compared to those obtained. Estimated VO2 was significantly higher than obtained VO2 in OG (16.9±1.8 vs. 13.1±2.1mL/kg/min) and HFG (12±6.9 vs. 8.7±2.5mL/kg/min). We found no difference between estimated and obtained VO2 for the YG (22,6±5,5 vs. 23,1±8,7mL/kg/min). The prediction equation overestimated VO2 values for older adults and HF patients. However, the YG obtained similar values than those estimated.

scholarly journals Summary Statement on Cardiopulmonary Exercise Testing in Chronic Heart Failure due to Left Ventricular Dysfunction Recommendations for Performance and Interpretation

2016 ◽  
Vol 68 (1) ◽  
Author(s):  
Ugo Corrà ◽  
Massimo F. Piepoli
Keyword(s):  
Heart Failure ◽  
Chronic Heart Failure ◽  
Left Ventricular Dysfunction ◽  
Exercise Testing ◽  
Ventricular Dysfunction ◽  
Exercise Physiology ◽  
Cardiopulmonary Exercise Testing ◽  
Relevant Information ◽  
Left Ventricular ◽  
Cardiopulmonary Exercise

Cardiopulmonary exercise testing (CPET) is a non-invasive tool that provides the physician with relevant information to assess the integrated response to exercise involving pulmonary, cardiovascular, haematopoietic, neuro-psychological, and skeletal muscle systems. Measurement of expiratory gases during exercise allows the best estimate of functional capacity, grade the severity of the impairment, objectively evaluate the response to interventions, objectively track the progression of disease, and assist in differentiating cardiac from pulmonary limitations in exercise tolerance. To achieve optimal use of this test in every day clinical practice, clarification of conceptual issues and standardization of CPET practices are necessary. Recently, a Statement on Cardiopulmonary Exercise Testing in Chronic Heart Failure due to Left Ventricular Dysfunction, by the Gruppo Italiano di Cardiologia Riabilitativa and endorsed by the Working Group on Cardiac Rehabilitation and Exercise Physiology of the European Society of Cardiology, has been published. Here are resumed the cardinal points of the Statement: (1) Definition of Cardiopulmonary Exercise Testing Parameters for Appropriate Use in Chronic Heart Failure, (2) How to Perform Cardiopulmonary Exercise Testing in Chronic Heart Failure, (3) Interpretation of Cardiopulmonary Exercise Testing in Chronic Heart Failure and Future Applications.

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