Hyperkalemia-like ECG changes simulating acute myocardial infarction in a patient with hypokalemia undergoing potassium replacement.
A pseudo-infarctional ECG pattern, previously noted to occur rarely in association with hyperkalemia, was observed in a patient with severe hypokalemia in the course of K+ replacement but while she was still hypokalemic. It is inferred that this puzzling ECG feature reflected a reduction of intracellular/extracellular [K+] ratio in a patient with decreased intracellular K+ concentration undergoing rapid K+ repletion.
Madias
J E
JE
Department of Medicine, Mount Sinai School of Medicine, City University of New York.
Madias
N E
NE
D000368:Aged; D003937:Diagnosis, Differential; D004562:Electrocardiography; D005110:Extracellular Space / Q000378:metabolism; D005260:Female; D006801:Humans; D007008:Hypokalemia / Q000188:drug therapy / Q000378:metabolism / Q000503:physiopathology*; D007424:Intracellular Fluid / Q000378:metabolism; D009203:Myocardial Infarction / Q000175:diagnosis*; D011188:Potassium / Q000378:metabolism; D011189:Potassium Chloride / Q000627:therapeutic use*
D011189:Potassium Chloride; D011188:Potassium