La repolarización auricular y sus implicaciones clínicas

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

“…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 .…”