Atrial fibrillation is the most common cardiac arrhythmia in the world, according to Gregory Marcus, a lead cardiology expert at University of Calif San Francisco. In atrial fibrillation, the heartbeat frequency is fast and irregular, which is much faster than the normal heart, and it is absolutely irregular. So the atrium loses the effective contraction function.
In addition, the incidence of atrial fibrillation is also closely related to diseases such as coronary heart disease, hypertension and heart failure. The resulting rapid and irregular pulse may lead to palpitations, fainting, and feeling breathless. Marcus said that atrial fibrillation is the main cause of thrombosis and stroke, but some patients may not feel the heart rate before the onset of the onset of the disease.
Researchers point out that early discovery can help people start taking drugs that dilute the blood to reduce the risk of stroke. To this end, Marcus and his colleagues evaluated the accuracy of Apple Watch in practical applications. “We want to be able to use an increasingly popular smart watch to help detect atrial fibrillation, without taking additional measures,” Marcus said.