Ventricular fibrillation

This trial tests whether a technique called PICSI, which selects sperm by their ability to bind to hyaluronic acid, can improve pregnancy rates and reduce miscarriage compared to standard ICSI. It involves couples who had poor fertilization in their first IVF cycle and are now tr…

This study follows 2000 people who have or will get the OmniaSecure defibrillation lead, a wire that helps control dangerous heart rhythms. Researchers will track how often the lead causes problems over 5 years. The goal is to make sure the lead is safe and works as expected in e…

This study tests a new system that combines a leadless pacemaker with a subcutaneous defibrillator to treat dangerously fast heart rhythms. The devices communicate wirelessly to deliver pacing therapy without wires inside the heart. About 300 people at risk for ventricular tachyc…

This study tests whether injecting a woman's own platelet-rich plasma (PRP) into the ovary can help restore function in women with premature ovarian insufficiency (early menopause). 35 women under 40 will receive PRP in one ovary and a saline placebo in the other. The main goal i…

This study is tracking 100 adults who receive an EluPro antibiotic-eluting envelope during implantation of a heart device (like a pacemaker). The envelope slowly releases antibiotics to prevent infection. Researchers are monitoring complication rates in real-world use to see how …

This study tests a new device that combines two heart therapies: one to strengthen heartbeats and another to stop dangerous rhythms. About 300 adults with heart failure and a weak heart pump will get the device. Researchers will check if it safely converts life-threatening heart …

This study compares two ways of programming implantable defibrillators (ICDs) in 398 Japanese patients. One group uses early, multiple bursts of rapid pacing (ATP) to stop dangerous heart rhythms, while the other uses a longer detection time before pacing. The goal is to see whic…

This early study tests a new type of lead (a wire) for an implantable cardioverter-defibrillator (ICD) in 19 people who need one. The lead is placed under the breastbone to deliver a shock if the heart beats dangerously fast. The goal is to see if it is safe and works well enough…

This study planned to test whether a direct injection of potassium chloride could help people whose hearts had stopped and were not responding to standard shocks. The trial was withdrawn before any patients were enrolled, so no results are available.

This registry follows 545 people with arrhythmia who received a heart ablation using the DiamondTemp system. Researchers will track how many stay free of their heart rhythm problem and how many have serious side effects over 12 months. The goal is to see how well the device works…

This study looks at whether a special PET scan can help doctors better predict sudden cardiac arrest in people with heart failure and blocked arteries. About 300 participants who already have a defibrillator will be followed to see if heart nerve damage, heart size, or blood mark…

This study looks at whether transferring a frozen embryo in the first menstrual cycle after egg retrieval leads to more live births than waiting until the second cycle. Over 800 women undergoing their first frozen embryo transfer are randomly assigned to immediate or delayed tran…

This study watches embryos grow using time-lapse cameras and compares their development to genetic test results. Researchers hope to find visual clues that indicate a healthy embryo. 2000 IVF patients are taking part. If a link is found, it could lead to a less invasive way to ch…