Why the study?
Do pulmonary factors contribute to dyspnea and exercise limitation during cycle ergometry in patients with severe left ventricular dysfunction?
Population
Patients with severe left ventricular dysfunction
Design
Cross-sectional
Authors
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Excessive ventilation may contribute to dyspnea in severe LV dysfunction; leaves open whether VD/VT-targeted interventions improve exercise tolerance.
Do pulmonary factors contribute to dyspnea and exercise limitation during cycle ergometry in patients with severe left ventricular dysfunction?
Excessive ventilation, rather than impaired arterial oxygenation, may be a contributing factor to dyspnea and exercise limitation in severe chronic heart failure.
Rubin et al. (1984) studied this question.
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