October 16, 2021

Hüseyin Babal

Health Article

Apple Watch can detect heart rhythm disorder

2 min read

It was found that 84 percent of people who received a heart rhythm irregularity alert by Apple Watch experienced atrial contractions.

In a study conducted at Stanford University, 400,000 Apple Watch users were examined for a year. Only 0.5 percent of these people were warned by the Apple Watch of a heart rhythm irregularity. It was determined by doctors that 84 percent of people who received a warning experienced atrial contraction. Doctors say atrial contraction can be a sign of serious health problems. In other words, the Apple Watch’s misdiagnosis rate is quite low, and the warnings given by the watch are reason enough to see a doctor.

The irregularity was detected in only 34 percent of people who received a warning notice and agreed to wear an ECG device for a week. However, this is a normal result when atrial contraction is intermittent. 57 percent of people who received a warning decided to see a doctor.

Series 4 model not examined in study

Only Apple Watch Series 3 and earlier models were used in the study. The ECG feature of the Series 4 smartwatches, which were released a few months after the study started, could not be tested in this study. The app regularly checks the heartbeat sensor to see if there is any loss.

The results obtained are not perfect. Even though the 84 percent rate indicates a reliable system, one-sixth of users who are warned still have no reason to worry. It is also not possible to determine how many people actually experienced atrium contractions but did not receive any warning. Still, the results are promising. By building on these results, Apple can improve itself in the field of health services.

Source: Engadget

In a study conducted at Stanford University, 400,000 Apple Watch users were examined for a year. Only 0.5 percent of these people were warned by the Apple Watch of a heart rhythm irregularity. It was determined by doctors that 84 percent of people who received a warning experienced atrial contraction. Doctors say atrial contraction can be a sign of serious health problems. In other words, the Apple Watch’s misdiagnosis rate is quite low and the warnings given by the watch are sufficient reason to see a doctor.

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