heart block


Definition of heart block

: 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 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 Further testing revealed at that time that the baby had congenital heart block—a condition caused by an antibody that had traveled across Cleghorn's placenta, attached to the baby's heart cells, and caused inflammation that slowed his heart muscle. Colleen Murphy, Health.com, 16 Feb. 2022 Amyloid protein can also block the arteries of the heart, leading to heart attack, or may damage the electrical conduction system of the heart, leading to heart block or abnormal rhythms. Dr. Keith Roach, oregonlive, 4 Feb. 2022 In a larger series of 700 COVID-19 patients monitored for rhythm problems, none developed heart block. Dr. Keith Roach, oregonlive, 24 Jan. 2022

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'heart block.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of heart block

1903, in the meaning defined above

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Time Traveler for heart block

Time Traveler

The first known use of heart block was in 1903

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Dictionary Entries Near heart block


heart block

heart bond

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Statistics for heart block

Last Updated

4 Aug 2022

Cite this Entry

“Heart block.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heart%20block. Accessed 17 Aug. 2022.

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More Definitions for heart block

heart block


Medical Definition of heart block

: 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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