Some features of the reflection of myocardial ischemia on the electrocardiogram
DOI: https://doi.org/10.29296/25877305-2020-10-03
Issue:
10
Year:
2020
The paper considers the problem of an association between myocardial ischemia and the reflection of
this pathological process on the electrocardiogram (ECG). It analyzes the difference and relationship
between the transmembrane potential of myocardial cells and the ECG signal. It is theoretically
substantiated that the change in the location of the ECG ST segment is determined by the flux ratio of
potassium and calcium ions through the membranes of myocardial cells. Impaired coronary blood flow results
in an insufficient supply of calcium ions to the myocardial cells, which leads to any displacement of the ST
segment from the zero potential line.
Keywords:
cardiology
myocardial ischemia
coronary blood flow
potassium and calcium ions
ST segment
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