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 utilizes data from the Bodyport Scale to develop an index that allows for the early detection of worsening heart failure. Participants will receive training on how to use Bodyport Scale and will complete remote follow-up visits. Researchers will look at medical records for heart failure history and any clinical events related to heart failure.

Adults with Cognitive Heart Disease (ACHD) now outnumber children with CHD. ACHD patients can demonstrate some neurocognitive deficits which may reduce their quality of life. The goal of this research is to determine if the mind's ability to resist damage of the brain can impact the development and neurocognitive outcomes in ACHD patients.

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).

Troponin I (cTnI) is a protein that is found in the heart muscle. When someone has a heart attack or other injury to the heart muscle, increased levels of cTnI can be measured in the blood and testing for cTnI in blood is used to help diagnose a heart attack and other heart conditions.

Troponin I (cTnI) is a protein that is found in the heart muscle. When someone has a heart attack or other injury to the heart muscle, increased levels of cTnI can be measured in the blood and testing for cTnI in blood is used to help diagnose a heart attack and other heart conditions.

Potential participants are people who have been on medications to treat heart failure, but you continue to have symptoms and qualify to have the FDA approved BAROSTIM NEO™ System implanted. The purpose of this research study is to describe the safety and effectiveness of the delivery system by an ultrasound guided implant procedure in people with heart failure. This is an experimental implant procedure where the data collected during and after procedure will help confirm the safety and effectiveness of the new implant procedure. This will be the first time humans will be implanted using this experimental procedure.

The purpose of this study is to evaluate the safety and effectiveness of ION-682884 and determine if it can help people with transthyretin-mediated amyloid cardiomyopathy (ATTR-CM) which is a disease caused by change in a protein called transthyretin (TTR). ION-682884 is an investigational drug. "Investigational" means that ION-682884 is not yet approved for use in any settings outside of clinical research studies like this one and is considered experimental. ION-682884 has been shown to reduce the level of TTR in the blood of animals and healthy volunteers tested to date. Reducing the amount of TTR in your blood may reduce the amount of amyloid deposits in your body and may keep your cardiomyopathy from getting worse over time. However, it is not known if ION-682884 will help your cardiomyopathy.

If you meet the requirements and agree to participate in this study, you will receive subcutaneous (under the skin) injections of either ION-682884 or placebo once every 4 weeks from week 1 through week 137.
Your participation in this study will last up to 36 months and will consist of clinic visits and follow up visits at home.

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.