A member asked:

If i had atrial fibrillation, wouldn't the 30 day event monitor i wore have showed it?

10 doctors weighed in across 3 answers
Dr. Frederman Concepcion answered

Specializes in Cardiology

No: It depends if you have permanent or paroxysmal atrial fibrillation. If you did not have an episode during those 30 days, i will not show. Paroxysmal means that is intermittent.

Answered 3/14/2019

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Atrial fibrillation: Paroxysmal atrial fibrillation can occur with virtually any frequency. If the frequency is daily or weekly, the 30 day monitor is likely to catch it. If the frequency is less than every two weeks, then the chances of missing on a single one month recorder are pretty good.

Answered 9/28/2016

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Dr. John Garner answered

Specializes in Cardiology

Depends: Event monitors come in lots of flavors. Some auto-trigger for suspected fib, many don't. And, of course, you'd also have to consider the possibility you didn't have any fib episodes that month.

Answered 2/19/2014

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