Find NHLBI Clinical Trials

Search selected NHLBI-supported clinical trials and observational studies by condition, location, or age group. You can also view the complete list of NHLBI-funded studies at ClinicalTrials.gov.

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Showing 1 - 10 out of 15 results
Recruiting
New York
The proposed study is a single-center, randomized controlled pilot trial of adults who suffer in-hospital cardiac arrests. Using cerebral oxygenation and end-tidal carbon dioxide physiological targets to predict survival and neurological outcome, the impact of physiological-feedback CPR will be assessed.
Adult, Older Adult
Recruiting
New York
The proposed study is a single-center, randomized controlled pilot trial of adults who suffer in-hospital cardiac arrests. Using cerebral oxygenation and end-tidal carbon dioxide physiological targets to predict survival and neurological outcome, the impact of physiological-feedback CPR will be assessed.
Adult, Older Adult
Recruiting
Maryland
Virginia
Are you an adult with ischemic or non-ischemic cardiomyopathy? This observational study will group and follow patients at a higher risk for sudden cardiac death (SCD) who receive an implantable cardioverter defibrillator (ICD) pulse generator replacement as a prevention measure. The study hypothesizes that abnormalities of the heart, some of which are genetically determined, can be used to identify patients at high risk of SCD. To participate in this study, you must be between 18 and 85 years old and have ischemic or non-ischemic cardiomyopathy. You must also be getting your initial ICD implant for primary prevention or a programmed generator replacement if the ICD was originally implanted for SCD primary prevention. The study takes place in Baltimore, Maryland; Richmond, Virginia; and Washington, DC.
Adult, Older Adult
Recruiting
New York
Are you an adult with ischemic cardiomyopathy? This study is investigating ways to prevent sudden cardiac arrest in people with ischemic cardiomyopathy. Researchers in this study are also working to determine which patients could benefit from an implantable cardioverter defibrillator, a device that is connected to the heart that can detect and stop irregular heartbeats called arrythmias. To participate in this study, you must be 18 years old or older and have ischemic cardiomyopathy. This study takes place in Buffalo, New York.
Adult, Older Adult
Recruiting
Indiana
Are you a woman who is postmenopausal or a man older than 65? This study will investigate the effects of oral progesterone for older women and testosterone for older men on QT intervals. QT intervals that are increased by medicine can lead to dangerous heart rhythm problems. Researchers hope to learn more about why this happens and how to deliver safer doses. This study is located in Indianapolis, Indiana.
Adult, Older Adult
Accepting Healthy Volunteers
Recruiting
Wisconsin
Does your developing baby have a heart defect? Have you had a stillborn baby? This study tests a new technology to measure fetal heart activity and find possible problems early. These problems include fetal arrhythmia and conduction disorders such as Brugada syndrome. To participate in this study, you must be at least 18 years old and pregnant, and have one of five high-risk complications of pregnancy: a fetus with a major congenital heart defect, hydrops, or gastroschisis; a previous unexplained stillbirth; or twins who share a placenta. This study is located in Madison and Milwaukee, Wisconsin.
Adult, Older Adult
Female
Recruiting
Tennessee
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.
Adult, Older Adult
Accepting Healthy Volunteers