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heart block
noun
: incoordination of the heartbeat in which the atria and ventricles beat independently and which is marked by decreased cardiac output
Examples of heart block in a Sentence
Recent Examples on the Web
People with arrhythmias or heart block because beta-blockers can slow the heart rate, which may worsen some types of arrhythmias.
—Sara Hoffman, Pharmd, Verywell Health, 22 Oct. 2024
Second-degree heart blocks partially disrupt the electrical signals.
—Mark Gurarie, Verywell Health, 2 Oct. 2024
The electrical impulse may be blocked anywhere along its path (heart block), resulting in bradycardia.
—Christopher Lee, Verywell Health, 22 July 2024
It was later revealed that the scan had identified a complete heart block which can lead to sudden cardiac death, per The Independent.
—Becca Longmire, Peoplemag, 6 June 2024
Roughly 1 in 15,000 children are born with congenital heart block, which causes an abnormally slow heart rate.
—Lizzy Lawrence, STAT, 12 Apr. 2023
Some patients suffer nerve damage, others heart block or swollen joints.
—Pamela Weintraub, Discover Magazine, 15 Dec. 2010
When the twins were two years old, Lily was diagnosed with a third-degree heart block, and received a pacemaker.
—Emily Burack, Town & Country, 26 July 2022
After surviving life-saving emergency surgery due to a complete heart block as a child, as well as a devastating car crash in college, the 26-year-old has worked hard to find ways to heal from her physical and emotional pain.
—Lanae Brody, PEOPLE.com, 15 Mar. 2022
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Word History
First Known Use
1903, in the meaning defined above
Dictionary Entries Near heart block
Cite this Entry
“Heart block.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart%20block. Accessed 14 Nov. 2024.
Medical Definition
heart block
noun
: incoordination of the heartbeat in which the atria and ventricles beat independently due to defective transmission through the bundle of His and which is marked by decreased cardiac output often with cerebral ischemia
More from Merriam-Webster on heart block
Britannica English: Translation of heart block for Arabic Speakers
Britannica.com: Encyclopedia article about heart block
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