Electrophysiological mechanisms of the st segment elevation during acute myocardial infarction. Current hypothesis

Authors

  • Raimundo Carmona Puerta Hospital Provincial Universitario Cardiocentro Ernesto Guevara
  • Ginner O. Rizo Rivera Hospital Universitario Arnaldo Milián Castro
  • Elibet Chávez González Hospital Provincial Universitario Cardiocentro Ernesto Guevara

Keywords:

elñectrocardiography, myocardial infarction, electrophysiology, physiopathology

Abstract

The origin of the ST segment elevation during acute myocardial infarction (AMI) has been the object of controversy. The advances in basic cardiac electrophysiology has made possible to assume, with a high degree of reliability, the ionic bases that generate the clinical electrocardiogram change. Starting from an electrical heterogeneity that exists in normal conditions, the acute myocardic ischemia  induces an exacerbation of this physiological behavior and creates significant transmural electric gradients, which produces powerful electrical current vectors from the endocardium to the epicardium. A different response from the electrophysiological point of view, in the presence of such abnormal stimuli, creates a functional substratum for such an electric discrepancy through the thickness of the cardiac walls.

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References

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Published

2010-12-27

How to Cite

1.
Carmona Puerta R, Rizo Rivera GO, Chávez González E. Electrophysiological mechanisms of the st segment elevation during acute myocardial infarction. Current hypothesis. CorSalud [Internet]. 2010 Dec. 27 [cited 2025 Sep. 11];2(4):279-85. Available from: https://revcorsalud.sld.cu/index.php/cors/article/view/1142

Issue

Vol. 2 No. 4 (2010)

Section

REVIEW ARTICLE

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