The purpose of this study is to evaluate the safety and effectiveness of the JenaValve Trilogy™ Heart Valve System in a patient population with symptomatic severe Aortic regurgitation ( a condition where the heart's aortic valve does not close tightly and allows some blood to leak back into the heart chamber) requiring replacement/repair of their native aortic valve that are at high risk for open surgical aortic valve replacement/repair (SAVR).

Your involvement in this study will last approximately 5 years from the time of your procedure. The visits include: Screening/Baseline, Procedure, Pre-Discharge, 1 month, 6 months and annualy for 5 years

This study is enrolling participants with severe aortic stenosis, which is narrowing of one of the heart valves. This condition reduces the amount of blood that can get to the body. This study is collecting data on the safety and effectiveness of an investigational (not yet approved for commercial use by the US FDA (Food and Drug Administration)) device called the ACURATE Aortic Valve System. The procedure to place the device, referred to as TAVR - transcatheter replacement of aortic valve is done in place of open heart surgery. In this study the ACURATE Aortic Valve System will be compared to two commercially available Aortic Valve Systems (valve replacement systems). Participants will be randomized (assigned by choice, like a flip of a coin, in a 1:1 fashion so 50% chance of being assigned to either group like the flip of a coin) to one of two groups. One group will receive the ACURATE Aortic Valve System while the other group will receive one of the commercially available systems. This study will last up to 10 years. Pre-procedure testing is done and reviewed by an eligibility committee to confirm you qualify. Study visits will occur prior to your procedure, during the procedure and throughout your hospital stay, and prior to discharge. Additional visits will occur 1 month and 6 months after your discharge, and then you will either seen or telephoned once per year for the next ten years. Study related testing includes CT scans, physical exams, echocardiograms (ultrasound test of the heart), blood work, and questionnaires.

This study is examining the use, safety and performance of an investigational, meaning not approved for commercial use or sale by the US Food and Drug Administration (FDA) device called Transcatheter Mitral Valve Replacement (TMVR). The TMVR is a device used to treat mitral valve disease in patients with heart failure (weakened heart muscle). The device is placed by a non surgical approach using a delivery catheter (hollow tube) placed in your blood vessel at the top of your leg and directed up to your heart. This five year study will include a screening process to determine you meet eligibility criteria. If you qualify you will then be seen for a baseline visit, undergo the procedure to place the device, day after procedure, at hospital discharge, 1,3,6, 12 months, then yearly for up to 5 years. Study related testing includes physical exams, medication review, 6 minute hall walk test, questionnaires, blood work, CT scans, electrocardiogram or ECG (recording of your heart's electrical activity) and echocardiogram (ultrasound test of your heart).

Two groups of former athletes (who competed in contact and not-contact sports) will undergo brain and heart assessments. Additionally, blood and urines samples will be collected in order to investigate potential markers of disease.

This study is being done on patients who have heart failure, a condition where the heart muscle weakens and enlarges and cannot pump blood effectively. The purpose of this study is to assess the safety and effectiveness of a new device called the AccuCinch Ventricular Restoration System and compare it to treatment with standard heart failure medications alone. The AccuCinch Ventricular Restoration System consists of anchors, which attach to your heart muscle, sliders to connect the anchors and a thread like cord that goes through the anchors and is cinched to make your enlarged heart smaller so it can pump more efficiently. The device is implanted in one of the lower pumping chambers of the heart (called left ventricle). The study will have two groups, the treatment group in which participants undergo the device implant in addition to taking heart failure medications and the control group in which participants are treated with heart failure medications alone. Participation will last up to 5 years.

The Advanced Cardiac Therapies Improving Outcomes Network (ACTION) is a distributed network-based learning health system (LHS) of care centers, clinicians, researchers and industry representatives partnering with patients who have heart failure and their caregivers with the ultimate aim of achieving health, longevity and quality of life equivalent to the general population. See https://www.actionlearningnetwork.org for more information. The initial focus will be to apply structured quality improvement methods, advanced information technology systems, and sharing of best practices to track and continuously improve health-related outcomes for children with heart failure requiring advanced therapies. In the future, we plan to collaborate with other established registries and learning network (i.e. UNOS, PHTS and Cardiac Networks United) to create an integrated network that improves care throughout all phases of a patient's illness including chronic heart failure, acute decompensated heart failure, ventricular assist device support and transplant.

This research study aims to determine a less invasive way to assess heart function by taking measurements of the heart while subjects are performing an exercise cardiac MRI. Subjects will undergo two exercise phases and MRI measurements will be taken after each exercise phase. These measurements will be compared to available clinical data (including demographic, hemodynamic, radiologic, and functional) and future outcome data.

This study is being done to evaluate the impact that monitored anesthetic care (MAC) versus general endotracheal anesthesia (GETA) has on hospital length of stay, rate of ICU admission, or procedural mortality. Also, we hope to determine if the use of Transesophageal Echocardiography (TEE) during GETA impacts device success and durability. Adult patients undergoing transfemoral approach TAVR for aortic valve stenosis may be eligible candidates for this study.

Elevated pressures in the heart can represent a severe medical condition known as pulmonary hypertension. This can result in chronic right heart failure. An abnormal increase in this pressure during exercise may be represent an early stage of vascular lung disease. This study will investigate the prognostic implications of the measured pressures obtained during exercise while undergoing a right heart catheterization procedure based on a large scale multi-center approach by using retrospective and prospective analysis of hemodynamic data.

The purpose of the study is to generate a bio bank of specimens for research. We will tissue that would otherwise be discarded from clinical or surgical procedure and information from medical records. We will also collect discarded blood, urines and sputum. Collecting samples will help to better understanding the mechanisms of cardiovascular diseases, identify biomarkers for early diagnosis and to predict safety and efficacy of new therapies.