We’ve heard several stories thus far about the Apple Watch’s ECG functionality saving people’s lives. Now, an Apple Watch user in Washington has credited his Apple Watch with alerting him that his atrial fibrillation had returned.

According to local news outlet KIRO, cardiologist Dr. Phil Massey of Pacific Medical Centers had a patient come into the hospital after his Apple Watch indicated he had an irregular heart rhythm.

The patient had been treated for atrial fibrillation in the past, but A-fib can be intermittent. According to Massey, the patient had been off his blood thinner medication and had not realized his atrial fibrillation had returned until his Apple Watch notified him.

Meanwhile, a heart nurse at Pacific Medical Centers added that she was “really skeptical” that the Apple Watch ECG readings would be useful until this case.

Going forward, Dr. Massey says he’s excited to see what other heart rhythm problems will be detectable outside of a doctor’s office. “I am hopeful that other heart rhythm problems will be able to be detected in the future outside of the doctor’s office,” he said. “And that’s exciting.”

Related stories: 

  • Apple Watch customer identifies A-fib heart condition after dismissing symptoms as ‘holiday anxiety’
  • Jeff Williams and Dr. Sumbul Desai explain latest Apple Watch heart features on ‘CBS This Morning’
  • Samsung Galaxy Active promises blood pressure monitoring before Apple Watch
  • One doctor believes healthy Apple Watch users under 65 should generally ‘ignore’ the ECG app