This happened yesterday. I picked up my FIL from the Airport yesterday, he was limping on the left side which was unusual considering he is in a decent shape. He had not eaten for 6-7 hrs so we thought this could be low blood sugar. We made him eat some food, but he still felt weakness in his left side.
My wife put her AW8 on his wrist and ran an ECG. AF was detected, we ran another ECG after 15 mins and still the same result.
We rushed to a cardiac specialist. The doctor ran an ECG and 2D echo and confirmed AF. He was admitted to the hospital and after some more tests, a stroke was confirmed. The AW detecting an AF alerted us and possibly averted what could have been a major health issue.
I am glad we had the technology available and made good use of it. Thanks Apple !
Thanks for the post by the way. It reaffirms my decision to get a watch with an ECG. Even though hopefully I will never need to use it.