extrasystole

[ek-struh-sis-tuh-lee]

noun

Pathology.

1. a premature contraction of the heart, resulting in momentary interruption of the normal heartbeat.

Other Word Forms

• extrasystolic adjective

Word History and Origins

Origin of extrasystole¹

From New Latin, dating back to 1895–1900; extra-, systole

Example Sentences

The extrasystole may have its origin in either the auricle or the ventricle.

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This disease is not frequent, while extrasystoles of a functional character are very frequent.

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If there is auricular extrasystole it can not usually be recognized except by graphic methods.

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Note that diastolic pause in which extrasystole occurs is practically equal to two normal diastolic pauses.

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Patients who have occasional extrasystoles will say that all of a sudden the heart turns upside down in the chest.

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