Key result
Patients with pulmonary arterial hypertension exhibited higher dyspnoea scores (5.8 vs 3.8), higher ventilatory equivalents for CO2 (58 vs 44), and lower peak oxygen pulse (5.9 vs 8.7 mL/beat) than those with chronic heart failure.
Why the study?
Does the cardiopulmonary exercise testing profile differ between patients with pulmonary arterial hypertension and chronic heart failure at the same severity of functional limitation?
Cross-Sectional (n=38)
Does the cardiopulmonary exercise testing profile differ between patients with pulmonary arterial hypertension and chronic heart failure at the same severity of functional limitation?
Despite similar functional limitation, patients with pulmonary arterial hypertension exhibit more dyspnoea, reduced ventilatory efficiency, and lower stroke volume during exercise compared to those with chronic heart failure.
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May distinguish PAH from HF on CPET; leaves open prospective validation for differential diagnosis.
Deboeck et al. (2004) conducted a cross-sectional in Pulmonary arterial hypertension and chronic heart failure (n=38). Pulmonary arterial hypertension vs. Chronic heart failure was evaluated on Cardiopulmonary exercise testing profile (dyspnoea scores, ventilatory equivalents for CO2, peak oxygen pulse). Patients with pulmonary arterial hypertension exhibited higher dyspnoea scores (5.8 vs 3.8), higher ventilatory equivalents for CO2 (58 vs 44), and lower peak oxygen pulse (5.9 vs 8.7 mL/beat) than those with chronic heart failure.
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