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Apple Watch detects heart problem known to cause strokes

Daily Mail - Science & tech

The Apple Watch has been found to detect a heart condition that affects some 2.7 million people in the US, a new study has revealed. By pairing the smartwatch's heart rate sensors with artificial intelligence, researchers developed an algorithm capable of distinguishing an irregular heartbeat, known as atrial fibrillation, from a normal heart rhythm - and with 97 percent accuracy. Atrial fibrillation, although easily treatable, has been difficult to diagnose and the team believes their work could pave the way for new methods to identify the abnormality. The Apple Watch has been found to detect a heart condition that affects some 2.7 million people in the US, a new study has revealed. The algorithm was accurate 97 percent of the time using the smartwatch's heart rate sensor (stock) University of California, San Francisco, in collaboration with the app Cardiogram, trained a deep neural network with heart readings from 6,158 Cardiogram users.

You Can Monitor Your Heart With A Smartphone. But Should You?

NPR Technology

Digital gizmos can monitor your heart, whether it's a wrist-worn fitness tracker or a smartphone app to help cardiologists analyze diagnostic tests. The question is whether they're going to do your heart any good. The short answer: it depends. New research finds that wrist-worn fitness trackers become less accurate with more vigorous exercise, which presumably is when you'd most want to know your heart rate. The study, published Wednesday in JAMA Cardiology, tested the Apple Watch, FitBit Charge HR, Basis Peak and Mio Alpha wristbands.

Could your Apple Watch save your life? How smartwatch sensors could help tackle a dangerous heart condition


You already know your smartwatch is a pretty smart bit of kit. It tells you how many steps you've taken, how many calories you've burned off, and your resting heart rate. But could it one day even save your life? Move over HealthKit: Why Apple's ResearchKit is proving the real hit with doctors HealthKit may be Apple's obvious play for the healthcare industry's IT spending, but it's ResearchKit that's showing how useful apps can be to medicine. A new research project using data gathered from Apple Watches has the potential to do just that.

Apple Heart Study shows a lot of promise for digital health, but cardiologists still have questions


Stanford Medicine published its long-awaited research on the Apple Heart Study, which represents one of the largest research efforts of its kind that relies on consumer devices to better understand human health. The paper, published on Wednesday in the New England Journal of Medicine, looked at how the Apple Watch could be used to detect atrial fibrillation, a condition that is associated with an increased risk of stroke. The researchers explained that Apple sponsored the study and owns the data, but the study data is stored at Stanford. As is standard with research studies, the protocol and methods were approved by a central institutional review board to ensure that patient privacy was protected. Atrial fibrillation affects about 6 million people in the United States alone, and many do not know that they have it.

Stanford publishes its massive Apple Watch heart-rate study


The Stanford researchers that conducted Apple's Heart Study have published their paper in the New England Journal of Medicine. They previously released the study's preliminary results, but you can now read the full paper if you're curious about how they were able to come to the conclusion that, yes, the Apple Watch can detect atrial fibrillation. People who have the condition have irregular heartbeat and could suffer from stroke, blood clots and heart failure. The study, which was sponsored by Apple and started back in 2017, garnered enough interest to enlist 400,000 volunteers with access to an iPhone and a Watch Series 1, 2 or 3. Apple's newer smartwatches weren't included, because it was before their time. The Heart Study app monitored the participants' heart rhythm to look for the presence of an irregular pulse.