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Persistent wandering atrial pacemaker after epinephrine overdosing - a case report
Elhadi H Aburawi1, Hassib Narchi, Abdul-Kader Souid
1Department of Pediatrics, College of Medicine and Health Science, United Arab Emirates University, Al-Ain, UAE. e.aburawi@uaeu.ac.ae
Background:
Long-term complications of sympathomimetic drug overdosing have not been adequately investigated in infants and young children. Despite reports discouraging their use in children, these formulations are frequently administered for "cold-like symptoms". Their frequent adverse events are different forms of arrhythmias, including multifocal atrial tachycardia.
Case Presentation:
A 3-year-old toddler developed multifocal atrial tachycardia following an iatrogenic overdose of epinephrine accidentally administered intravenously. His ECG showed wandering atrial pacemaker (p-waves with different origins and configurations) that persisted for at least one year. This event demonstrated the sensitivity of young children to the sympathomimetic drugs, especially overdosing.
Conclusions:
Health care providers and parents should be warned of toxicities associated with sympathomimetic drug overdosing. Future studies are needed to determine whether wandering atrial pacemaker is a potential long-term complication of high-dose sympathomimetics.
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