alternans

noun
al·​ter·​nans | \ ˈȯl-tər-ˌnanz How to pronounce alternans (audio) \

Medical Definition of alternans

: alternation in the pattern of activity (such as that produced by the heartbeat) Her electrocardiogram showed small spikes that alternated in shape—a classic sign of cardiac tamponade called electrical alternans.— Tony Dajer, Discover The noninvasive detection of an increased risk of ventricular fibrillation may be made possible by the identification of T-wave alternans, a beat-to-beat fluctuation in the area under the T wave that is associated with an increased risk of lethal arrhythmia.— James E. Muller and Richard L. Verrier, The New England Journal of Medicine — see pulsus alternans

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Dictionary Entries Near alternans

altered state of consciousness

alternans

Alternaria

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Cite this Entry

“Alternans.” Merriam-Webster.com Medical Dictionary, Merriam-Webster, https://www.merriam-webster.com/medical/alternans. Accessed 27 Jun. 2022.

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