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2015 ; 48
(6
): 1000-5
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ECG signatures of psychological stress
#MMPMID26364755
Lampert R
J Electrocardiol
2015[Nov]; 48
(6
): 1000-5
PMID26364755
show ga
Psychological stress can lead to atrial and ventricular arrhythmias, but the
physiological pathways have not been fully elucidated. Signal processing
techniques can provide insight into electrophysiological mechanisms of
stress-induced arrhythmia. T-wave alternans, as well as other ECG measures of
heterogeneity of repolarization, increases with emotional and cognitive stress in
the laboratory setting, and may also in "real life" settings. In the atrium,
stress impacts components of the signal-averaged ECG. These changes suggest
mechanisms by which everyday stressors can lead to arrhythmia.