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TechRadar
Stephen Warwick

The Apple Watch is helping Afib patients ditch blood thinners in a ground-breaking trial

Apple Watch ECG.

A hospital in Pittsburgh has become the latest medical center to join a ground-breaking Apple Watch trial in the US that's helping patients with atrial fibrillation ditch blood-thinning medication.

The REACT-AF trial began in July 2023 and is led by researchers at Johns Hopkins Medicine. Randomized patients (half of the overall participants) wear an Apple Watch for 14 hours a day, paired with an iPhone pre-programmed to monitor irregular heart rhythms.

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