Ventricular fibrillation

This study tests whether an external abdominal tourniquet can temporarily block blood flow to the lower body during cardiac arrest, redirecting it to the brain and heart. Researchers will try it on 5 adults with non-traumatic cardiac arrest outside a hospital. The goal is to see …

This study tests whether mirabegron, a drug typically used for overactive bladder, can reduce dangerous heart rhythms in people with heart disease. Twenty adults with an implanted defibrillator and frequent ventricular tachycardia will take the drug for two months. Researchers wi…

This study tests whether a four-week virtual yoga program can improve quality of life and reduce anxiety and depression in people going through IVF. About 80 participants will either take weekly yoga classes or continue with their usual care. Researchers will track changes in moo…

This study looks back at the medical records of 300 people with arrhythmogenic cardiomyopathy who have an implantable cardioverter-defibrillator (ICD) and have had dangerous heart rhythms. Researchers want to count how often ICD-related problems occur, such as lead failure or ina…

This study follows 25,000 people referred to a specialized heart clinic with symptoms like chest pain or shortness of breath. Researchers will track which heart conditions are actually diagnosed and how patients are evaluated. The goal is to improve diagnostic accuracy and unders…

This study looks back at medical records of 1500 adults hospitalized for acute myocarditis (heart muscle inflammation). The goal is to find out how often dangerous heart rhythms occur and what factors predict them. No new treatments are tested—researchers will use existing data t…

This study will observe 253 adults with heart rhythm problems who are scheduled for procedures like pacemakers or ablation. Researchers will use advanced imaging and AI tools to understand why some patients respond well to treatment while others do not. The goal is to find better…

This study tests a machine learning device that uses heart tracings (ECG) to predict if a person will have another cardiac arrest after being revived. Researchers will first see if EMS providers find the device useful in simulated scenarios, then test its accuracy in 68 real pati…

This study aims to see if artificial intelligence can predict serious heart rhythm problems, like atrial fibrillation, after high-risk surgeries. Researchers will record ECGs from 300 adults before surgery and analyze over 200 heart cycle parameters to find the best prediction me…

This study looks at whether people with certain heart rhythm disorders also carry genetic variants linked to a rare muscle condition called non-dystrophic myotonia. Researchers will review medical records of 570 participants and invite some for a neurological exam and electromyog…

This study will check progesterone levels in 659 women on the day of a frozen embryo transfer. The goal is to see how common low progesterone is and whether it is linked to lower pregnancy rates. Participants will have one extra blood draw, and their pregnancy outcomes will be tr…