Widening of the QRS-complex differentialsCreated OnApril 20, 2020Last Updated OnApril 20, 2020byadmin You are here: Main ECG Widening of the QRS-complex differentials < All Topics Table of Contents Bundle branch blocks (LBBB or RBBB) Non-specific intraventricular conduction delay (e.g. LVH, cardiomyopathy) Paced beats Pre-excitation (e.g. WPW) Metabolic (Hyperkalaemia or severe acidosis) Na+ channel blocking drugs (e.g. TCA’s) Ventricular ectopy
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