Huawei Heart Research, led by PLA General Hospital, released the research on screening atrial fibrillation based on photoelectric volume pulse wave (PPG) technology at ESC annual meeting. The study was also published online in the Journal of the American Heart Association. (Jamcoll Cardiol。 On September 2, online version)
In the study, 1879 12 people used Huawei smart bracelets. After monitoring for at least 14 days, 262 patients with suspected atrial fibrillation were found, and 227 patients with atrial fibrillation were finally diagnosed, with an accuracy rate of 9 1.6%. After that, 80% patients with high risk of atrial fibrillation and stroke received anticoagulant therapy.
Compared with the Apple Heart Research released at the annual meeting of the American Heart Association this year, among the 420,000 users, 2 1 case, 6 1 case (0.5%) received irregular pulse notification. But in the end, only 34% was diagnosed as atrial fibrillation or atrial flutter. The accuracy of Huawei bracelet is undoubtedly higher.
Photoelectric volume pulse wave technology is a simple, low-cost and non-invasive method to detect heart rhythm by sensing the change of capillary blood volume.
After wearing the bracelet, the bracelet monitors the rhythm of 1 pulse wave every 10 minute, and collects 60 seconds to judge the heart rhythm. Users can also actively monitor and collect signals for 45 seconds.
When continuous 10 measurements reveal "irregular heart rhythm" of suspected atrial fibrillation, the user will receive a notice of "suspected atrial fibrillation" and go to the cooperative hospital for further diagnosis and treatment according to the region.
The study also found that this measurement method is more effective than single active measurement in screening atrial fibrillation; In addition, continuous monitoring for more than 2 weeks is more conducive to the detection of atrial fibrillation.