Hypoglycemia electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] Associate Editor(s)-in-Chief: Mohammed Abdelwahed M.D[2]

Overview

On EKG, hypoglycemia is characterized by sinus tachycardia and supraventricular tachycardia.

EKG

• EKG findings in hypoglycemia include sinus tachycardia and supraventricular tachycardia.

EKG shows sinus tachycardia, source: courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:Sinustachycardia.jpg

• EKG findings in hypoglycemia may show supraventricular tachycardia in uncotrolled cases.

EKG shows supraventricular tachycardia, source: courtesy of ECGpedia, http://en.ecgpedia.org/wiki/File:De-AW00011.jpg

• Based on some experimental data, hypoglycemia due to insulin use can lead to long QT syndrome and eventually increases the risk of cardiac arrhythmia.