T wave alternans

a marker of myocardial instability.

Margaret Harvey, Robert Malkin

Research output: Contribution to journalReview article

1 Citation (Scopus)

Abstract

T wave alternans is an electrocardiographic marker of myocardial electrical instability considered predictive for the development of lethal ventricular rhythms. Direct observation of this phenomenon on the electrocardiogram is rare. Subtle, nonvisible alternation of the T wave may be detected at the microvolt level using advanced signal processing techniques. This technology has enabled investigators and clinicians to identify and risk-stratify certain groups at high risk for sudden cardiac death. The purpose of this review is to discuss the concept of T wave alternans in relation to all cardiac alternans, provide an overview of its proposed mechanisms, and address the clinical utility of this electrocardiographic marker of myocardial electrical instability.

Original languageEnglish (US)
JournalProgress in Cardiovascular Nursing
Volume18
Issue number2
StatePublished - Jan 1 2003
Externally publishedYes

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Sudden Cardiac Death
Electrocardiography
Research Personnel
Observation
Technology

All Science Journal Classification (ASJC) codes

  • Cardiology and Cardiovascular Medicine
  • Nursing (miscellaneous)

Cite this

T wave alternans : a marker of myocardial instability. / Harvey, Margaret; Malkin, Robert.

In: Progress in Cardiovascular Nursing, Vol. 18, No. 2, 01.01.2003.

Research output: Contribution to journalReview article

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