What question did this study set out to answer?

The aim is to explore the relationship between T wave alternans and sudden cardiac death, focusing on underlying mechanisms and prevention strategies.

March 1, 2003Cardiovascular Research

Repolarization alternans: implications for the mechanism and prevention of sudden cardiac death

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The aim is to explore the relationship between T wave alternans and sudden cardiac death, focusing on underlying mechanisms and prevention strategies.
Utilization of computer technology for detecting T wave alternans during exercise testing.
Review of high-resolution optical mapping studies to investigate cellular mechanisms behind T wave alternans.
Analysis of electrophysiological properties and calcium cycling effects on repolarization alternans.
T wave alternans correlates strongly with sudden cardiac death risk and is linked to arrhythmias.
Cellular alternans pertain to ionic current variations and are influenced by calcium cycling dynamics.
Spatially discordant alternans amplify repolarization heterogeneities, creating a substrate for reentrant excitation.

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Implication

TWA may aid SCD risk stratification in select patients; leaves open randomized trials for clinical adoption.

Cite This Study

Mariah L. Walker (2003) studied this question.

synapsesocial.com/papers/6a213aaaffa0738687c3da06 https://doi.org/10.1016/s0008-6363(02)00737-x

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Repolarization alternans: implications for the mechanism and prevention of sudden cardiac death

Key Points

Discussion

Implication

Cite This Study

Repolarization alternans: implications for the mechanism and prevention of sudden cardiac death

Key Points

Discussion

Implication

Cite This Study

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