Overview
- An AI-driven joint study by Samsung and Chung‑Ang University, published Thursday in European Heart Journal Digital Health, reports the first smartwatch-based prediction of vasovagal syncope.
- Using the watch’s optical sensor to track heart rate variability, the model identified pre-faint patterns up to five minutes in advance with 84.6% accuracy.
- The paper details 90% sensitivity to catch most events and 64% specificity that allows some false positives.
- Researchers evaluated 132 patients during head‑up tilt tests that induce fainting, which may limit how well the approach generalizes to daily life.
- An early alert could help people sit or call for help to avoid injuries from falls, though Samsung says it is not a consumer feature and there is no clearance or release timeline.