Cambios electrocardiográficos asociados a hipopotasemia: Alteraciones del segmento ST imitando isquemia miocárdica de múltiples territorios

Abstract

No se declaran Conflictos de interésSe presenta el caso de un paciente de sexo femenino de 42 años sin antecedentes clínicos de relevancia, con hipopotasemia severa y cambios electrocardiográficos imitando isquemia miocárdica con enfermedad coronaria de múltiples vasos.

Injury to the left main coronary artery disease or severe hypokalemia? Possible duality in the same electrocardiogram: A case report and a focused review of the literature

“…After performing a review of the available medical literature in the major clinical databases (PubMed, Google Scholar, and Scielo), we found just one case report of hypokalemia simulating a pattern of obstruction of the left main coronary artery 3 .…”

“…Potassium channels normally open during the repolarization phase of a cardiac action potential, allowing potassium ions to leave the cell. The cell becomes hyperpolarized as a result, going back to its resting state 3,6 . This ionic balance can be disrupted by low potassium levels in the blood plasma in hypokalemia, leading to aberrant repolarization, as evidenced by alterations in the T-wave and ST-segment on the ECG 3,6 .…”

“…The cell becomes hyperpolarized as a result, going back to its resting state 3,6 . This ionic balance can be disrupted by low potassium levels in the blood plasma in hypokalemia, leading to aberrant repolarization, as evidenced by alterations in the T-wave and ST-segment on the ECG 3,6 . Furthermore, certain sodium and calcium channels may become more active in hypokalemia, which may further modify repolarization and possibly cause arrhythmias 3,6 .…”