Clinical Trials

Have you been diagnosed with orthostatic intolerance? This study aims to find out how the body’s regulation of basic functions, such as heart rate and blood pressure, is altered in people who have orthostatic intolerance. This condition, which has an unknown cause, is characterized by a racing heartbeat, dizziness, lightheadedness, and other symptoms that occur when a person stands up. To participate in this study, you must be between 18 and 80 years old and have orthostatic intolerance. This study is located in Nashville, Tennessee.

Did you develop atrial fibrillation after coronary artery bypass graft (CABG) surgery? Did you develop atrial fibrillation after a coronary artery bypass grafting (CABG) surgery? This study is looking at how well oral anticoagulation medicines work to prevent complications, such as blood clots and heart attack, for patients who experience post-operative atrial fibrillation (POAF). This study is in multiple locations around the country.

Are you a female between 18 and 55 years old who has postural tachycardia syndrome (POTS)? This study is looking at the sympathetic nervous system and its effect on the increased heart rate and dizziness upon standing that people with POTS experience. This study is located in Nashville, Tennessee.

Does your child have Down Syndrome? Did they have a complete atrioventricular septal defect (CAVSD) repair within the first year of their life? Researchers in this study are investigating how the
brain develops in children with Down Syndrome who have congenital heart disease. To participate, your child must be between 5 and 12 years old and have Down Syndrome. The study will enroll children who have congenital heart disease as well as children who do not have congenital heart disease. The study is taking place in locations in Delaware, Georgia, Indiana, Massachusetts, Michigan, Missouri, New York, Ohio, Pennsylvania, South Carolina, Texas, Utah, Washington, D.C., and Toronto, Canada