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A Systematic Approach for the Interpretation of Cardiopulmonary Exercise Testing in Children with Focus on
1Division of Pediatric Cardiology, Department of Pediatrics, McLane Children's Baylor Scott and White Medical Center, Baylor College of Medicine-Temple, Temple, TX 76502, USA.
Insights
Cardiopulmonary exercise testing (CPET) is crucial for diagnosing exercise intolerance in patients with congenital heart disease and heart failure. This review details CPET interpretation for cardiovascular diseases, aiding clinical diagnosis.
Area of Science:
- Cardiology
- Pulmonology
- Exercise Physiology
Background:
- Cardiopulmonary exercise testing (CPET) is the gold standard for evaluating exercise intolerance.
- Impairments in heart, lung, muscle, and metabolism cause exercise abnormalities.
- Integrated multi-system analysis aids differential diagnosis.
Purpose of the Study:
- To review the interpretation and clinical significance of CPET results.
- To focus on cardiovascular diseases and their impact on exercise.
- To provide a practical algorithm for clinical use.
Main Methods:
- Review of existing literature on CPET.
- Analysis of CPET variables in cardiovascular diseases.
- Development of a diagnostic algorithm.
Main Results:
- CPET integrates cardiovascular stress testing with gas exchange analysis.
- Commonly used CPET variables have significant diagnostic value.
- An algorithm simplifies CPET interpretation for clinicians.
Conclusions:
- CPET is essential for assessing conditions like congenital heart disease and heart failure.
- Understanding CPET interpretation is key for diagnosing exercise intolerance.
- The provided algorithm supports clinical decision-making.
Abstract:
Cardiopulmonary exercise testing (CPET) is the clinical standard for children with congenital heart disease (CHD), heart failure (HF) being assessed for transplantation candidacy, and subjects with unexplained dyspnea on exertion. Heart, lung, skeletal muscle, peripheral vasculature, and cellular metabolism impairment frequently lead to circulatory, ventilatory, and gas exchange abnormalities during exercise. An integrated analysis of the multi-system response to exercise can be beneficial for differential diagnosis of exercise intolerance. The CPET combines standard graded cardiovascular stress testing with simultaneous ventilatory respired gas analysis. This review addresses the interpretation and clinical significance of CPET results with specific reference to cardiovascular diseases. The diagnostic values of commonly obtained CPET variables are discussed using an easy-to-use algorithm for physicians and trained nonphysician personnel in clinical practice.
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