Chemoreflex Sensitivity in HFpEF

Brief summary (registry, in English)

Patients with heart failure and a preserved left ventricular ejection fraction (HFpEF) almost invariably complain of exertional breathlessness. Abnormal cardiac hemodynamics with pulmonary congestion are believed to trigger dyspnea in this patients. However, some patients may complain of exertional breathlessness which seems to be out of proportion as compared with hemodynamic abnormalities. Chemoreflex sensitivity accounts for the ventilatory responses to a variety of chemical stimuli, including carbon dioxide produced by the organism during exercise. Chemoreflex sensitivity can be augmented in heart failure with reduced left ventricular ejection fraction, and an increased chemoreflex sensitivity has been linked to symptoms, neurohumoral activation, breathing disturbances, and adverse prognosis. However, the clinical correlates and implications of chemoreflex sensitivity in HFpEF have not been accurately studied. We aim to characterize chemoreflex sensitivity in patients with a diagnosis of HFpEF, and to correlate chemoreflex sensitivity with clinical and hemodynamic characteristics.

What you commit to

• Study type: Observational
• Planned participants: 60
• From 1 Oct 2024 to the primary completion date, 31 Dec 2029
• 1 site in 1 country
• Visits and tests: ask the trial team, the registry does not list them

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Who cannot take part

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Who the study is looking for

Sex: All · Accepts healthy volunteers

Full criteria on ClinicalTrials.gov

Sites (1)

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