Curated News
By: NewsRamp Editorial Staff
May 19, 2026
Smart Wristband Detects Cardiac Arrest with 92% Accuracy in Study
TLDR
- Wristband detects cardiac arrest 92% of the time, potentially giving users a life-saving edge in emergencies.
- The wristband uses a photoplethysmography algorithm to measure blood flow and detect cardiac arrest continuously.
- This smart wristband could save lives by alerting emergency services to unwitnessed cardiac arrests outside hospitals.
- First study validating a wrist-based algorithm for cardiac arrest detection using real patient data.
Impact - Why it Matters
This news matters because out-of-hospital cardiac arrest is a leading cause of death, often occurring without witnesses. A smart wristband that automatically detects arrest and alerts emergency services could dramatically reduce response times, potentially saving thousands of lives each year. For individuals with heart conditions, this technology offers a new layer of safety, turning everyday wearables into life-saving devices. The study's high accuracy and low false-alarm rate suggest that such devices could soon become standard tools for at-risk patients, bridging the gap between medical emergencies and immediate care.
Summary
A groundbreaking study published in Circulation: Arrhythmia and Electrophysiology, a peer-reviewed journal of the American Heart Association, reveals that a smart-technology wristband may accurately detect cardiac arrest during routine medical procedures. The DETECT-1b study, conducted in the Netherlands, analyzed data from 49 adults with abnormal heart rhythms who underwent procedures where life-threatening rhythms were briefly induced. The wristband, utilizing a photoplethysmography algorithm, detected cardiac arrest 92% of the time, including 100% of ventricular fibrillation cases. This marks the first validation of such an algorithm using patient data, a crucial step toward a reliable detection system for real-world use.
The study's lead author, Roos Edgar, emphasized that unlike previous approaches, this wristband allows continuous, unobtrusive monitoring in daily life. Many commercial smart watches, while using similar sensors, are not designed for cardiac arrest detection. The device could act as a "digital witness," automatically notifying emergency services or nearby responders, potentially improving survival rates for out-of-hospital cardiac arrests, which are often unwitnessed. The research is part of the broader DETECT project, a collaboration involving several hospitals and a company in the Netherlands.
While the results are promising, experts like Cameron Dezfulian from Baylor College of Medicine note the need for further research, especially regarding pulseless electrical activity, a common cardiac arrest rhythm not fully validated in this study. The study was conducted in a controlled clinical setting, so real-world effectiveness remains to be evaluated. Nonetheless, the low false-positive rate (9 events in 125 hours) is encouraging. The American Heart Association, which published the study, continues to support innovations that could revolutionize emergency response and save lives.
Source Statement
This curated news summary relied on content disributed by NewMediaWire. Read the original source here, Smart Wristband Detects Cardiac Arrest with 92% Accuracy in Study
