Arrhythmia

This study tested whether permanent pacemakers can be safely implanted using only ultrasound (transthoracic echocardiography) instead of traditional X-ray guidance. Thirty-one adults with arrhythmias who needed a pacemaker took part. The goal was to see if the procedure could be …

This study tests whether a 7-day adhesive ECG patch (MEMO Patch) can detect more heart rhythm abnormalities than a conventional 24-hour Holter monitor in adults who experience palpitations or dizziness. Participants wear both devices at the same time for the first day, then conti…

Researchers are testing whether a cardiac rehabilitation education video helps people with cardiovascular implantable electronic devices (CIEDs) such as pacemakers and defibrillators increase their physical activity. The trial enrolls adults aged 20 to 100 who have had a CIED for…

This trial compares two standard local anesthetics given during pacemaker or defibrillator surgery: a mixture of lidocaine and bupivacaine versus lidocaine alone. Researchers want to see if the mixture reduces postoperative pain and the need for narcotic painkillers. About 350 pe…

This study tested whether online group exercise training could help children aged 6-18 with pacemakers become more active and improve their strength and quality of life. 36 children were split into two groups: one did online exercise sessions three times a week for eight weeks, w…

This study looks at whether a newer, gentler heart procedure called pulse-field ablation (PFA) can reverse harmful changes in the heart's upper chambers caused by atrial fibrillation. Researchers will compare CT scans taken before and 3 months after the procedure in 200 adults. T…

This study follows 340 people with atrial fibrillation who are having their first ablation procedure. Researchers will track heart rhythm using remote monitoring, along with imaging and blood tests, to find which factors—like patient health, heart structure, or electrical signals…

This study looked at how well a procedure called catheter ablation works for treating fast heart rhythms in people with congenital heart disease. Researchers treated 40 patients and followed them for one year to see if the abnormal heart rhythm came back. The goal was to understa…

This study tested whether a small, band-aid-like heart monitor (Zio patch) can be worn by children for up to 14 days. It involved 36 kids aged 1 to 17 years. The goal was to see if the patch sticks well and gives clear heart signals. The study did not test any treatment, only the…

This study tested a noninvasive monitor that uses light to measure oxygen levels in the liver of children with heart conditions. Researchers wanted to see if this method could replace the usual needle-based blood draw. The study included 100 children undergoing heart catheterizat…

This study used a special brain imaging technique called near-infrared spectroscopy to see how the brain responds to pain and sounds while people are under general anesthesia. 44 healthy volunteers aged 12-30 were given either a painkiller (remifentanil) or a placebo. The goal wa…

This study looked at whether silent myocardial ischemia (reduced blood flow to the heart without chest pain) increases the risk of heart problems or death in people with coronary heart disease. Researchers followed participants for one to three years. The goal was to better under…

This study aimed to find out if certain genes make people more likely to die suddenly from a heart problem. Researchers looked at the DNA of 2,500 people to see if specific gene variations were linked to sudden cardiac death. No treatments or interventions were given; the goal wa…

This completed study from the University of São Paulo measured physical activity levels and quality of life in 100 adults with cardiac arrhythmias. Researchers used questionnaires to see how active patients were and how they felt physically and mentally. The goal was to understan…