Sudden cardiac arrest

This study tested whether using a smartphone app to alert nearby volunteers (called 'heart runners') to bring an automated external defibrillator (AED) to a suspected cardiac arrest can improve survival. Over 2,000 emergency calls were randomly assigned to either activate these v…

This study tested a wearable defibrillator patch (the Jewel) in 18 adults who were already scheduled for a heart procedure. The patch was used to deliver a shock to stop dangerous heart rhythms that could lead to sudden cardiac arrest. The goal was to see how often the patch coul…

This study tested a wearable defibrillator called the Jewel P-WCD in 322 adults at high risk for sudden cardiac arrest. The device is designed to automatically deliver a shock to restore normal heart rhythm if a dangerous heart rhythm occurs. The main goals were to see how often …

This study tested whether a special type of dialysis (high-permeability hemodialysis) could help people in shock after being revived from cardiac arrest. The idea was to filter out inflammatory substances from the blood to improve blood pressure and reduce the need for strong med…

Researchers are testing a software update for the Philips HeartStart Intrepid monitor, a device that records 12-lead electrocardiograms (ECGs) to check heart rhythms. The study enrolls people from 29 days to 89 years old who are willing to have ECG tracings taken. The goal is to …

This study enrolls 500 people who take a CPR and AED training course based on European standards. Researchers measure how the course changes participants' practical skills, confidence, and attitudes toward helping someone in sudden cardiac arrest. The goal is to understand how we…

This study looks at whether the Tempus Pro, a portable vital signs monitor used in ambulances, sends accurate ECG (heart) recordings and other vital sign data to doctors via telemedicine. Researchers will compare the transmitted data with the original readings from the device to …

This study tests whether a single training session can improve police officers' ability to recognize agonal breathing — an abnormal gasping pattern that can be mistaken for normal breathing during cardiac arrest. Over 3,400 officers in New Taipei City will take a 20-minute CPR re…

This study looks at why people on dialysis for kidney failure often have dangerous heart rhythms. Researchers implanted a small heart monitor in 18 patients to track their heartbeats for up to three years. They also used CT scans and ultrasound to see if the dialysis procedure it…

This study examines how often patients and their relatives develop post-traumatic stress disorder (PTSD) after a sudden cardiac arrest. Researchers interviewed 45 people (20 survivors and 20 relatives) within a week of the event and again at 3 months using standard questionnaires…

This study tested whether using a video call (telemedicine) to guide bystanders in CPR is better than standard phone-only instructions. Researchers studied 108 adults with suspected cardiac arrest in Bangkok, Thailand. The goal was to see if video help leads to more people receiv…

This study looked at whether giving CPR instructions over the phone before help arrives increases the number of bystanders who perform CPR. Researchers tracked 274 adults who had a cardiac arrest outside the hospital. The goal was to see if simple instructions could save more liv…

This study looked at 537 people with myotonic dystrophy type 1 to understand their risk of serious heart rhythm problems, including sudden cardiac arrest. Researchers tracked participants for two years to see how often these events happened and what factors might predict them. Th…

This study looked at blood clots from 380 people who had a heart attack or sudden cardiac death. Researchers wanted to see if the age and makeup of the clot could explain why some people die suddenly while others survive. They compared clots from sudden death victims, heart attac…

This completed study looked at 110 people with cardiac amyloidosis, a condition where protein deposits build up in the heart. Researchers implanted a small device under the skin to continuously monitor heart rhythms for up to several years. The goal was to learn more about when a…

This study looked at whether keeping a diary during intensive care can lower the risk of post-traumatic stress disorder (PTSD) in people who survived a sudden cardiac arrest and in their family members. About 173 patients and their relatives took part. Researchers measured PTSD s…

This study looked at 212 critically ill adults in one ICU to see if three blood test ratios could predict death. The ratios compare lactate, CRP, and procalcitonin to albumin levels. Researchers will check if these ratios are linked to survival and find cut-off values to help doc…

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 pilot study tested whether using two defibrillators early, instead of one, is feasible and safe for people whose hearts stop outside a hospital and don't respond to the first shock. Researchers enrolled 40 adults with a shockable heart rhythm. The goal was to see if emergenc…