How to Use A-fib in a Sentence
A-fib
noun-
A-fib is a quivering or irregular heartbeat that is a worrisome stage-setter for blood clots, stroke and heart failure.
—Maria Sherman, Chicago Tribune, 23 Sep. 2026
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Women faced greater odds for heart failure and coronary artery disease, while younger people were more affected by heart failure and A-fib.
—Kristen Rogers, CNN Money, 27 Oct. 2025
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According to experts, a pulse measurement can underestimate the true heart rate of a patient in A-fib.
—Lizzie Presser, ProPublica, 14 Jan. 2026
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A-fib is an irregular, quivering or often rapid heart rhythm resulting from the heart’s upper chambers, the atria, beating out of sync with the lower chambers, the ventricles.
—Kristen Rogers, CNN Money, 27 Oct. 2025
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Before the study began, 60% of people in the coffee-drinking group and 65% in the no-coffee group said that coffee had never triggered an A-fib episode.
—Kaitlin Sullivan, NBC news, 9 Nov. 2025
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Also known as A-fib, the condition is an irregular heart rhythm that begins in your heart’s upper chambers, per Cleveland Clinic.
—Jordana Comiter, PEOPLE, 23 Dec. 2025
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More than 10 million Americans live with atrial fibrillation, or A-fib, a common heart disorder that causes heart palpitations and can lead to heart failure, blood clots and stroke.
—Kaitlin Sullivan, NBC news, 9 Nov. 2025
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For example, a 2024 review found that high-dose omega-3 supplements of 1–4 grams per day were associated with a dose-dependent increase in A-fib risk.
—Jillian Kubala, HEALTH, 18 Sep. 2026
Some of these examples are programmatically compiled from various online sources to illustrate current usage of the word 'A-fib.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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