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Updated: Jul 31, 2025

How to Obtain Reliable Visual Event-related Potentials in Newborns
Published on: October 24, 2019
Wide complex rhythm in a well neonate: Where are the P waves?
Gabrielle Jee1, Amos Wong1, Victor Ofoe1
1Department of Paediatric Cardiology, University Hospital of Wales, Cardiff, UK.
Abstract:
A neonate was seen for an evolving broad QRS complex rhythm initially captured at birth as intermittent escape beats on electrocardiogram. Continuous monitoring recorded features mimicking pre-excitation, but closer analysis revealed a regular broad QRS complex rhythm with isorhythmic atrioventricular dissociation, favouring a ventricular source. Treatment with flecainide and propranolol achieved successful control of the incessant arrhythmia with improvement in cardiac function on echocardiogram.
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