What is Microvolt T-Wave Alternans (MTWA)?
Microvolt T-Wave Alternans is a beat-to-beat fluctuation in the amplitude of the T-wave at a microvolt level. When detected this indicates the presence of a type of cellular metabolic activity that frequently leads to tachyarrhythmias. Microvolt T-Wave Alternans testing was cleared by the FDA for its ability to predict ventricular tachyarrhythmias and sudden cardiac death.
