Key result
Severe hyperkalemia in a 38-year-old man with type 1 diabetes caused an electrocardiographic pseudoinfarction pattern mimicking acute anteroseptal myocardial infarction.
Case Report (n=1)
Severe hyperkalemia and acidosis can produce an electrocardiographic pseudoinfarction pattern that mimics an acute anteroseptal myocardial infarction.
Consider hyperkalemia before cath-lab activation for MI-like ECGs; case report extends known mimics but leaves generalizability open.
A 38-year-old man presented to the emergency department with nausea, vomiting, and epigastric pain. The patient had type 1 diabetes mellitus and was being treated with insulin. He was also taking lisinopril for the treatment of hypertension. The initial electrocardiogram (Panel A) revealed sinus tachycardia and ST-segment elevation in leads V1 to V3 — findings highly suggestive of acute anteroseptal myocardial infarction. Peaked T waves were noted in leads II, III, aVF, and V3 to V6. The serum glucose concentration was 839 mg per deciliter (46.6 mmol per liter), the arterial blood pH was 7.21, . . .
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Kyuhyun Wang (2004) conducted a case report in Hyperkalemia (n=1). Hyperkalemia was evaluated. Severe hyperkalemia in a 38-year-old man with type 1 diabetes caused an electrocardiographic pseudoinfarction pattern mimicking acute anteroseptal myocardial infarction.
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