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
  • 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
  • According to experts, a pulse measurement can underestimate the true heart rate of a patient in A-fib.
    — Lizzie Presser, ProPublica, 14 Jan. 2026
  • 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
  • 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
  • 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
  • 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
  • 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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