This study is for patients with obstructive hypertrophic cardiomyopathy (oHCM). oHCM is a condition where the heart muscle becomes abnormally thickened, which can sometimes block the blood flow out of the heart and results in the heart muscle working harder to pump blood to the body.

The study is done to compare the side effects and effectiveness of an investigational (not yet approved by the Food and Drug Administration (FDA)) medication with the beta-blocker metoprolol succinate in participants with oHCM. The study medication is known as Aficamten and is a tablet taken by mouth. This is a randomized study (participants will be assigned by chance to the study medication Aficamten and placebo or metoprolol succinate and placebo). A placebo looks just like the study medication but has no active ingredient in it. The medications will be administered in the form of a pill. This study will take about 9 months and include about 11 visits to the study site. Study related procedures include blood work, echocardiograms (ultrasound test of the heart), electrocardiogram (recording of heart's electrical activity), exercise testing, physical exams, questionnaires and optional genetic testing. Risks associated with this study include shortness of breath, nausea, diarrhea, headaches and dizziness.

This is a study comparing the new class anticoagulants factor XIa to the FDA approved Apixaban. The study is to determine if Milvexian is as effective and safe with preventing clots for patients with A-fib and to determine if Milvexian is better at reducing the chances of bleeding.

This is a study comparing the new class anticoagulants factor XIa to the FDA approved Apixaban. The study is to determine if Milvexian is as effective and safe with preventing clots for patients with A-fib and to determine if Milvexian is better at reducing the chances of bleeding.

The study is being done to test the use of a drug called bromocriptine for women who have a condition called Peripartum cardiomyopathy or PPCM. PPCM means you have a weak heart after giving birth. The study will look at how the heart muscle improves in women taking bromocriptine compared to a group of women given a placebo or inactive pill. Bromocriptine is approved by the United States Food and Drug Administration (FDA) to treat irregular periods and other symptoms that result from having high blood levels of a substance called prolactin. It is not approved for use in usual care to treat PPCM. The follow up period will be about 3 years. The study will have an initial visit and then the follow -up visits will take place at one, three, six, and 12 months in the first year and visits by phone at 24 months and 36 months.

This study is enrolling adults between the ages of 18-60 who have a Patent Foramen Ovale (PFO). A PFO is a slit-like opening between the upper chambers (called atria) of the heart. This opening allows blood to flow between these chambers which can lead to a stroke. This study is examining an investigational device called the Encore PFO closure device. An investigational device is one that is not yet approved for commercial use by the US Food and Drug Administration (FDA) but is approved for use in this study. This study will last approximately 5 years and involve 9 visits. This is a randomized study meaning participants will be randomly assigned to receive the investigational PFO closure device or an FDA approved PFO closure device. Participants have a 50:50 chance to receive either device. Study related testing includes physical exams, blood test, echocardiogram (ultrasound test of the heart) electrocardiograms or ECG (test of the electrical activity of the heart) and the procedure to place the PFO closure device. There are risks involved with this study including access site related risks, bleeding and bruising, incomplete closure of the PFO with the closure device or other device related complications. There is potential benefit including reduced risk of a recurrent stroke.

There are two classes of drugs for preventing blood clots in patients with atrial fibrillation (AF), an irregular heartbeat, after cardiac surgery: antiplatelet drugs (like aspirin) and anticoagulants (blood thinners). This study aims to determine whether the addition of blood thinners to antiplatelet drugs will improve treatment outcomes in patients who develop AF after coronary artery bypass grafting (CABG) surgery.

In this study, you will be randomized (assigned to a group by chance--like flipping a coin) into one of 2 study groups; the assignment to receive the antiplatelet drug alone or the antiplatelet drug plus a blood thinner.

Before discharge from the hospital, you will undergo an electrocardiogram (ECG), which examines the electrical activity of your heart. At 1 and 2 months after randomization, you will receive a phone call from the study staff. At 3 months after randomization, you will return to the institution where you received your surgery for an in-person visit. At 6 months, you will receive a phone call from the study staff. Your total participation will be about 6 months.

The purpose of this study is to evaluate the potential effectiveness, outcomes, and safety (before, during, and after study procedures) of the Inter Atrial Shunt Device (IASD) in the treatment of subjects with heart failure symptoms and relatively normal pumping of the heart. This study involves the use of an investigational medical device called the Corvia Atrial Shunt (CAS) System. The CAS is permanently implanted in the heart to reduce the increased pressure in the left side of the heart by creating a small opening between the two upper chambers of the heart. Participants will have a 50% chance of being in either group A having the CAS placed or group B and not receiving the device. Subjects will have 7 research clinic visits, and multiple telephone calls for a total of 5 years of follow-up. The research clinic visits will include medical exams, health questionnaires, ECG and echocardiogram of the heart and 6 minute hall walk tests.

The purpose of this study is to evaluate the potential effectiveness, outcomes, and safety (before, during, and after study procedures) of the Inter Atrial Shunt Device (IASD) in the treatment of subjects with heart failure symptoms and relatively normal pumping of the heart. This study involves the use of an investigational medical device called the Corvia Atrial Shunt (CAS) System. The CAS is permanently implanted in the heart to reduce the increased pressure in the left side of the heart by creating a small opening between the two upper chambers of the heart. Participants will have a 50% chance of being in either group A having the CAS placed or group B and not receiving the device. Subjects will have 7 research clinic visits, and multiple telephone calls for a total of 5 years of follow-up. The research clinic visits will include medical exams, health questionnaires, ECG and echocardiogram of the heart and 6 minute hall walk tests.

This proposal is to contribute to data registry and sample bank called Pediatrics Biorepository for Cardiology Clinical Research. Samples collected in this study may be used for future research which plan to advance the state of science in the hopes to develop new ways to diagnose and treat children affected with heart conditions.

The purpose of this research study is to determine if an already FDA approved drug called atorvastatin can help adults, age 75 or older, live well for longer by preventing dementia, disability, or heart disease. Participants will be assigned by chance to receive either atorvastatin (study drug) or a matching placebo (a tablet that looks like atorvastatin but does not contain any medicine). Study engagement may last up to five years and involves in clinic and/or remote visits, survey questions, potential blood draws, in addition to memory and physical tests. After the first 1-2 visits performed in clinic or remote, the study team will follow-up via phone on a yearly basis to see how participants are doing. Participants will be compensated for their time and participation in this research study.