Ventricular arrhythmias due to cardiac ryanodine receptor calcium release deficiency syndrome

This Canadian study tests whether remote monitoring of implantable defibrillators can replace regular in-clinic checkups. Over 1,100 participants will either use a home transmission system or receive usual care. The goal is to see if remote monitoring can detect heart issues fast…

This trial tests whether a wearable ECG patch called MEMO Patch Plus can detect clinically significant arrhythmias in adults hospitalized with acute heart failure. Participants wear the patch for up to 14 days in the hospital and again for up to 14 days after discharge. The study…

This study tested a procedure that blocks certain nerves to the heart in 18 people with life-threatening, uncontrollable heart rhythm problems (called electrical storm). The goal was to see if it could reduce dangerous heart episodes and the need for defibrillator shocks. The app…

This study tested a pacemaker feature called AutoAdapt that automatically adjusts timing settings to help the heart pump better. It involved 198 people with heart failure who needed a special pacemaker. The goal was to see if this smart feature improves symptoms, reduces hospital…

This study tested whether two wearable devices—the Apple Watch and the Skylab CART-I ring—can accurately detect atrial fibrillation and other irregular heart rhythms compared to the standard 12-lead ECG. Researchers recruited 500 adults from UK cardiology clinics. Each participan…

This study tested a non-invasive mapping system (Cardioinsight®) to help doctors treat heart rhythm disorders. It included 492 patients who needed ablation, pacemaker implantation, or risk assessment for sudden death. The goal was to see if the mapping system improves outcomes co…

This study tested whether an iPhone ECG device (AliveCor) can accurately measure the QT interval of the heart compared to a standard 12-lead ECG. Researchers studied 29 hospitalized patients starting medications that can affect the QT interval. The goal was to see if the iPhone r…

This study tested a new non-invasive tool called ECG-Imaging that uses many electrodes on the body to create a 3D map of the heart's electrical activity. The goal was to see if it can more accurately locate the source of heart rhythm problems compared to a standard ECG. 362 parti…

This study looks at a new, less invasive way to monitor blood flow during heart ablation procedures. Doctors will use a special device to track heart function beat-by-beat. The goal is to see if this method helps improve care for 27 adult patients having heart ablation.

This study is investigating how often dangerous heart rhythm problems occur in people receiving hemodialysis for end-stage kidney disease. Researchers will implant a small device under the skin to continuously monitor heart rhythm for 18 months in 70 patients, half of whom have d…

This study checks how well a small, wearable heart monitor (Zio monitor) works when worn for up to 30 days. About 150 adults will wear the device to see how long it stays on, how much usable heart data it records, and if it causes any skin irritation. The goal is to make sure the…

This study looked at how well a new heart monitor (Assert-IQ) detects atrial fibrillation (an irregular heartbeat) in people who have had a heart ablation procedure. 151 participants wore the monitor as part of their normal care. Researchers compared the monitor's readings to a s…

This study used computer simulations to compare three types of radiation (photons, protons, and carbon ions) for treating a dangerous heart rhythm called ventricular tachycardia. Researchers created treatment plans for 23 patients who were already scheduled for standard catheter …

This study tracked 1,826 people who received a small implantable heart monitor (Confirm Rx) to check for irregular heartbeats. Over 12 months, researchers recorded how often the device caused serious problems and how well it worked in daily life. The goal was to see if the monito…

This completed early-stage study looked at whether a single dose of HSK3486, an anesthesia drug, changes the heart's electrical activity in 48 healthy adults aged 18 to 45. The main goal was to measure any effects on heart repolarization (QTc interval) and check for side effects.…

This study tested a new computer algorithm that analyzes heart signals during a procedure called ablation for persistent atrial fibrillation (a type of irregular heartbeat). The goal was to see if the system could collect and process these signals to help doctors better understan…

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…