Clinical Trials

The purpose of the study is to determine if extra cardiac conduit stenosis was found in Fontan patients who previously had a cardiac catheterization at Mayo Clinic and if subsequently treated with conduit stent placement in order to determine if stenting is effective in relief of clinical symptoms.

The purpose of this study is to collect pulmonary arterial endothelial cells from the balloon tips of pulmonary artery catheters (PAC) during right heart catheterization (RHC) and to measure bcl-2 protein expression in these cells in order to index this measurement to a composite hemodynamic and clinical indicators of precapillary vascular disease in pulmonary hypertension. 

AIM III is a prospective, randomized, double-blinded, placebo controlled trial. The study is directly connected to IRB 08-008161 as a specific aim of the National Institute of Health (NIH) grant. Participants may either consent to and qualify for AIM I and AIM II (IRB 08-008161) or have a cardiac catheterization with acetylcholine testing in the Cardiac Catheterization Laboratory at Mayo Clinic in Rochester MN to be considered for this study.

This is a two-part study, comprised of an initial open-label run-in phase (Part 1) in a subset of 3 subjects to provide first data regarding safety, and feasibility of the percutaneous endovascular catheter-facilitated intramyocardial delivery of XC001 in patients with RA due to obstructive CAD.

Part 1 of the study is comprised of 3 subjects with RA (CCS class II-IV) who will receive 4×1011 viral particles (vp) XC001. An Independent Data Monitoring Committee (IDMC), the committee will review safety and feasibility data and approval to commence enrollment in Part 2 of the study.

Part 2 is a randomized, double-blind, sham-procedure control study. ...

The purpose of this study is to investigate the use of shear wave elastography to assess diastolic heart muscle stiffness for diastolic heart failure patients, and compare the stiffness measurements with the cardiac catheterization (cath lab) results.

The purpose of this study is to identify patients presenting to the echocardiogram laboratroy for routine clinically indicated echocardiography or to the cardiac catheterization laboratory for routine clinically indicated catheterization procedures. These patients will undergo a cardiac physical examination using the ( VoqX) stethoscope for the following 2 aims:

1) Collect computerized auscultation data to train the ©VoqX device on how a variety of cardiac pathologies "sound", including normal heart sounds, aortic stenosis, and mitral valve disease, after identifying these cardiac pathologies using gold-standard testing with echocardiography or invasive cardiac catheterization.

2)Prospectively determine the accuracy of the ©VoqX device as a tool to non-invasively screen for ...

The purpose of this study is to answer the question: “Does a short course of oral anticoagulation with a direct oral anticoagulant after transradial access for coronary angiography/left heart catheterization and/or percutaneous coronary intervention reduce the incidence of radial artery occlusion?” The hypothesis is that oral anticoagulation will reduce the incidence of radial artery occlusion at 30 days without a significant increase in the rate of clinically significant bleeding.

The purpose of this study is to assess the extent and severity of plasma volume expansion and overload in patients requiring ultrafiltration/dialysis and determine the relationship of quantitated Blood Volume Analysis (BVA) to hemodynamic right heart measurements.

This study is being done to evaluate correlations between echocardiographic Doppler parameters and invasively-measured hemodynamics both at rest and during exercise in a broad cohort of patients referred for cardiac catheterization.

The purpose of this study is to implement a rapid hemodynamic heart-lung protocol performed at the bedside by cardiology and critical care fellows and subsequently correlate ultrasound-derived hemodynamic parameters with PAC-derived parameters. 

The purpose of this study is to assess the correlation between myocardial elasticity (ME) measurements obtained simultaneously during cardiac hemodynamic catheterization and intraprocedural echocardiography.

The purpose of this study is to determine if an initial invasive strategy of cardiac catheterization and optimal revascularization with optimal medical therapy is the best management strategy compared with an initial conservative strategy of optimal medical therapy alone for higher-risk patients with stable ischemic heart disease.