Dear all,

just found a clinical case where a PE was detected by a smartwatch. I think such device can be very useful for ll patients. I will definitely buy one when i undergo this surgery. Pulmonary embolism can be detected by a smartwatch

Does anyone know if the watch gives an acoustic signal when blood oxygen falls below a certain level?

"A 50-year-old Japanese woman was referred to our hospital for assessment of dyspnea. One month before admission, she was tested for coronavirus disease 2019 (COVID-19) because of close unprotected contact with her husband with COVID-19. Her test was positive for COVID-19 without any symptoms and she was cured without any specific treatment. Four days before admission, she developed dyspnea with exertion and saw a primary care physician. Her peripheral oxygen saturation (SpO2) was 94–98%. Chest radiography and electrocardiogram did not show any abnormal, thus she was referred to our hospital for further examination. Her medical history included pulmonary embolism (PE) due to remaining in the same position for a long time at the age of 42 years. She was on no medications. She had never smoked, and she drank alcohol 20 g/day. At our hospital, SpO2 was 97%. However, her smartwatch (Apple Watch Series 7) had shown an SpO2 of 88% in the early morning (Figure 1). Therefore, emergent computed tomography (CT) angiography of the chest was performed, and it showed filling defects in multiple branches of the pulmonary artery, which confirmed PE (Figure 2).

The smartwatch correctly recognized a low SpO2, which led to the diagnosis of PE in our case. "

https://academic.oup.com/qjmed/article/116/2/123/6692318