Clinical trials Below are current clinical trials.87 studies in Cardiovascular Medicine (open studies only). Filter this list of studies by location, status and more. A Study of Autoimmune Functions in Patients with Myocarditis Jacksonville, Fla. The purpose of this research is to study immune cells called T cells and monocytes (types of blood cells that fight infection and can also cause autoimmune disease) that may damage heart tissue during myocarditis (inflammation of the heart muscle). Cytokines (proteins that send signals between cells) found in the blood will be studied for their effects on blood immune cells to better understand how they can lead to heart failure during and after myocarditis. A Study to Assess Frailty and Its Impact on Patients with Pulmonary Hypertension Rochester, Minn. The purpose of this study is to evaluate the prevalence and effect of frailty in patients referred to pulmonary hypertension (PH) clinic at our institution. Analysis of Outcomes of Left Cardiac Sympathetic Denervation in Arrhythmia Syndromes and Cardiomyopathies Rochester, Minn. The purpose of this study is to collect and review the Mayo Clinic experience with left cardiac sympathetic denervation (LCSD) in patients with heritable arrhythmias syndromes or refractory ventricular arrhythmias beginning in 2000. A Study to Assess Virtual Reality As Anesthesia Adjunct During Electrophysiology Lab Procedures Jacksonville, Fla. The purpose of this study is to evaluate the use of virtual reality (VR) technology as adjunct to routine anesthesia care for patients undergoing electrophysiology (EP) procedures. Hypoplastic Left Heart Syndrome: Validating Functional Parameters and Novel Echocardiographic Imaging Strategies for Evaluation of Functionally Single Right Ventricular Performance using Previously Recorded Studies Rochester, Minn. The purpose of this study is to validate novel echocardiographic parameters and algorithms to quantitatively evaluate right ventricular function in patients with Hypoplastic Left Heart Syndrome (HLHS) by applying these methods to previously acquired echocardiographic examinations. A Study to Evaluate Breathing Muscle Training in Cardiac Rehab Rochester, Minn. We are currently enrolling both healthy volunteers and people who have been diagnosed with heart failure to participate in our research study. The purpose of this study is to better understand the relationship between exercise, breathing, blood flow and blood pressure. This study includes two study visits if you are a healthy or heart failure volunteer. All testing will be performed at our testing center at St. Mary’s Hospital located in Rochester, MN. On the first study visit, the research activities will be discussed and all questions will be answered. Once written consent is provided and the participant is enrolled, lung function and exercise capacity will be measured. The second study visit includes two separate breathing muscle workouts (a light and moderate workload) each followed by 10 min of light to moderate cycling exercise. In addition, two breathing tests will also be performed. During this visit, blood is drawn during exercise. If you are a patient at Mayo Clinic, who is currently enrolled or will be enrolling in a cardiac rehabilitation exercise program, you will have the option to complete four study visits. Your first two study visits as described above will be completed at the beginning of cardiac rehabilitation and then we will ask you to return to complete those same two study visits following the completion of your cardiac rehabilitation program. Remuneration and parking reimbursement are provided. COVID-19 (Coronavirus) Pandemic on Health and Healthcare Rochester, Minn. The purpose of this study is to identify correlates of healthcare-seeking behavior in patients with ACS and CHF and its association with psychosocial and health outcomes. Acoustic Spectrograms and Detection of Early LVAD Thrombosis Rochester, Minn. The purpose of this study is to characterize the acoustic features of normal left ventricular assist device (LVAD) pump function using spectrography and fast Fourier transformation. The study will also identify abnormalities seen in the acoustic spectrograms of those patients presenting with LVAD thrombosis. Furthermore, the study aims to follow patients where abnormalities are seen in order to ascertain which features are predictive of the development of pump thrombosis and may be considered early markers thereof. A Study of In Vitro Mapping of Cardiac Tissue Obtained from Patients with Refractory Arrhythmias who Underwent Heart Transplant or Replacement with Mechanical Heart Rochester, Minn. The purpose of this study is to obtain electro-anatomic maps of human myocardium in sinus rhythm and ventricular arrhythmias to identify activation patterns, identify and perform tissue ablation at targeted sites of interest that could play an important trigger for development of arrhythmias, and to perform histologic analysis of the myocardial tissue to identify triggers and/or targets for therapies to terminate ventricular arrhythmias. Spontaneous Coronary Artery Dissection: Case Review Rochester, Minn. Spontaneous coronary artery dissection (SCAD) is uncommon but important cause of acute coronary syndrome and sudden cardiac death. There is very little data exists in regards to patient clinical characteristics, risk factors, treatment and outcomes. Our objective is to prospectively assess long term outcomes. 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So the mission and research here is to advance how we can best help the patient, how to make sure the patient comes first in care. So in many ways, it's a cycle. It can start with as simple as an idea worked on in a laboratory, brought to the patient bedside, and if everything goes right — and let's say it's helpful or beneficial — then brought on as a standard approach. And I think that is one of the unique characteristics of Mayo's approach to research — that patient-centeredness — that really helps to put it in its own spotlight. SectionsRequest an appointmentOverviewTests & proceduresConditions treatedDoctorsSpecialty groupsExpertise & rankingsClinical trialsResearchPatient storiesCosts & insuranceNews from Mayo ClinicReferrals ORG-20121929 Medical Departments & Centers Cardiovascular Medicine