FAQ: Is Atrial Fibrillation (A-Fib) Dangerous?
A fellow caregiver asked...
Is atrial fibrillation (A-fib) dangerous?
Expert Answer
Dr. Leslie Kernisan is the author of a popular blog and podcast at BetterHealthWhileAging.net. She is also a clinical instructor in the University of California, San Francisco, Division of Geriatrics.
Atrial fibrillation, also called A-fib, can cause potentially life-threatening health problems, including stroke and heart failure.
In most cases, dangerous complications of A-fib can be avoided with proper medical management. This includes use of blood-thinning medication to prevent stroke, as well as monitoring and medication to avoid a too-high heart rate (which can lead to heart failure).
Note that although A-fib is the most common arrhythmia, it's not the type of arrhythmia that causes sudden cardiac arrests.
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