CArdioMEtabolic Function and Reserve Capacity in Healthy Adults: The CAMERA Study

Purpose

The purpose of this study is to evaluate pulmonary capillary wedge pressure (PCWP) and other hemodynamic measurements at rest and during exercise in healthy volunteers across the age spectrum.

Condition

  • Healthy

Eligibility

Eligible Ages
Over 30 Years
Eligible Sex
All
Accepts Healthy Volunteers
Yes

Inclusion Criteria

  • Apparently healthy volunteers are eligible to participate in this study if they are free of symptoms of exertional breathlessness or fatigue and any diagnosis of heart failure. - Patients will also be required to have left ventricular ejection fraction (EF) ≥ 50%. - Patients discovered to reduced EF or abnormal resting hemodynamics or other pathologic findings previously undiscovered will be considered screen failures and can be replaced by others to reach the goal enrollment. - Informed consent were obtained. - No history of heart failure. - Willing and able to undergo invasive hemodynamic exercise testing, MRI, and other study assessments.

Exclusion Criteria

  • Clinically significant symptoms of exertional dyspnea or fatigue in daily life in the opinion of the investigators. - Any diagnosis of heart failure - Symptomatic coronary artery disease (e.g., patients with chronic angina) - Symptomatic valvular heart disease - Pulmonary hypertension - Cardiomyopathies - High output heart failure - Pericardial disease - Clinically significant chronic lung disease in the opinion of the investigators - Anemia (hemoglobin <12 gm/dL in women and <13 gm/dL in men) - Estimated glomerular filtration rate ≤30mL/min - Pregnant women - Any other disorders or problems that would interfere with the ability to participate safely in the study (e.g. psychiatric disorder or substance abuse)

Study Design

Phase
N/A
Study Type
Interventional
Allocation
N/A
Intervention Model
Single Group Assignment
Primary Purpose
Basic Science
Masking
None (Open Label)

Arm Groups

ArmDescriptionAssigned Intervention
Experimental
Healthy Volunteers 		Healthy volunteers with no history of Heart Failure (HF) will undergo a Right Heart Catheterization with Hemodynamics and Limited Echocardiogram, MRI, and DEXA scan.
  • Procedure: Right Heart Catheterization with Hemodynamics and Limited Echocardiogram
    Right Heart Catheterization (RHC) with Hemodynamics and Limited Echocardiogram is an invasive procedure that involves insertion of a catheter through a blood vessel in the neck, groin, or arm to the right side of the heart. Hemodynamic measurements such as the blood pressure inside the veins, heart, and arteries as well as measurements of blood flow and how much oxygen is in the blood will be completed during the catheterization procedure. It is a way to see how well the heart is working during your procedure. During the RHC procedure a limited echocardiogram, using ultrasound waves, will be collected to evaluate the structure and function of the heart. All measurements will be conducted at rest and during exercise using a supine cycle ergometer
  • Procedure: Magnetic Resonance Imaging (MRI)
    MRI is a medical imaging technique that uses a magnetic field and computer-generated radio waves to create detailed images of the organs and tissues in your body. CMR Imaging will assess myocardial structure, function, and fat content. An additional limited MRI sequence of the the abdomen and one sequence in the thigh will be used to evaluate for visceral adipose tissue (VAT) as a measurement of body composition.
    Other names:
    • CMR Imaging
  • Procedure: Dual X-ray absorptiometry (DEXA) scan
    A DEXA scan measures the amount of fat in the body using an x-ray that measures bone, calcium and fat.

Recruiting Locations

Mayo Clinic in Rochester
Rochester, Minnesota 55905
Contact:
Dr. Borlaug's Research Team
(507) 255-2200

More Details

Status
Recruiting
Sponsor
Mayo Clinic

Study Contact

Alyssa Ploof
507-255-0463
ploof.alyssa@mayo.edu