Tricyclic antidepressant overdose electrocardiogram

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Raviteja Guddeti, M.B.B.S. [2]

Overview

Electrocardiogram (ECG) abnormalities are frequent and a wide variety of cardiac dysrhythmias can occur, the most common being sinus tachycardia and intraventricular conduction delay resulting in prolongation of the QRS complex and the PR/QT intervals.^[1]

↑ Thanacoody H, Thomas S (2005). “Tricyclic antidepressant poisoning : cardiovascular toxicity”. Toxicol Rev. 24 (3): 205–14. doi:10.2165/00139709-200524030-00013. PMID 16390222.