Why the study?
Do cardiopulmonary exercise testing variables correlate with echocardiographic markers of diastolic dysfunction in patients with heart failure and normal ejection fraction?
Do cardiopulmonary exercise testing variables correlate with echocardiographic markers of diastolic dysfunction in patients with heart failure and normal ejection fraction?
Cardiopulmonary exercise testing variables, particularly peak oxygen uptake, ventilatory efficiency, and heart rate recovery, correlate significantly with E/E' in patients with HF-NEF, suggesting CPX provides valuable insight into diastolic dysfunction.
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CPX variables may reflect diastolic dysfunction in HF-NEF; hypothesis-generating and requires prospective validation before clinical use.
Guazzi et al. (2010) studied this question.
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