Contrast Echocardiography During Exercise to Assess Pulmonary Blood Volume
Trial statusRecruiting
Trial phaseNot listed
Trial typeObservational
Biological sexAll
Age18+
SponsorMayo Clinic
About this trial
The purpose of this study is to evaluate whether pulmonary blood volume (PBV) derived from contrast echocardiography can serve as a non-invasive surrogate for invasive pulmonary artery wedge pressure (PAWP) during exercise. Also, to compare changes in PBV with exercise in patients with and without heart failure and pulmonary vascular disease.
Eligibility criteria
Qualifiers
Patients referred to the cardiac catheterization laboratory for invasive exercise right heart catheterization for evaluating exertional dyspnea. Investigators will include patients with normal or low EF, and across the spectrum of pulmonary hypertension severity.
Disqualifiers
Patient inability or unwillingness to undergo echocardiography including a contrast method, or if echocardiography would, in the opinion of the investigator, somehow compromise the quality of data acquisition for the clinical case.
Prior adverse reaction to echo contrast administration
Trial design
Treatments tested in this trial
- Not listed
Trial groups
No trial groups listed
Sponsors and collaborators
Source ClinicalTrials.gov