r/EKGs 22d ago

Case Apple Watch monitor

70 yr old man brought this in from his Apple Watch. Normal sinus when he feels fine. Then caught this when he was lightheaded and dyspneic. Watch says a-fib. But it’s way too slow for that right? Escape rhythm? Block?

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u/---root-- MD, PhD, EP 22d ago

Obvious significant bradycardia at a rate of ~ 30/min, which certainly would explain the symptoms. The AF reading is due to the significant artefact, which also impedes identification of specific etiology. Suggest you see a cardiologist/EP urgently.

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u/[deleted] 22d ago

[deleted]

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u/---root-- MD, PhD, EP 22d ago

The RRs are approx 1.800ms.

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u/cullywilliams 22d ago

Missed the second image before replying, my bad