Abstract
Introduction. The arrythmogenic syncope in children with bradyarrhythmias can be life-threatening and their differentiation is extremely important in the evaluation of any child with syncope.
The aim – to identify electrocardiographic and electrophysiological predictors of the development of syncope in children with bradyarrhythmias.
Material and methods. The authors analyze the group of 96 children with implanted cardiac monitors who achieved positive results from long-term cardiac rhythm monitoring. The examination of patients included electrocardiography (ECG), EchoCG, Holter rhythm monitoring, electrophysiological study, exercise test, and analysis of family anamnesis data.
Results. 16 out of 96 children had structural heart diseases – congenital heart defects, cardiomyopathies. Episodes of arrhythmias were documented in 30% of children during syncope, with bradyarrhythmias predominant in 93% and episodes of asymptomatic arrhythmias were observed in 43% of children. Sinus rhythm during syncope was registered in 48% of children, and 8% of patients in our group had a combination of arrhythmogenic and non-arrhythmogenic genesis of syncope. The heart rhythm characteristics of standard ECG and Holter monitoring in patients with arrhythmogenic syncope did not differ significantly from either patients with asymptomatic episodes of arrhythmias or patients with sinus rhythm during syncope.
Conclusion. The data of the preliminary examination, including standard ECG, EchoCG, Holter monitoring, electrophysiological study, analysis of genealogical anamnesis data, are not predictors of the development of the an arrhythmogenic syncope or an asymptomatic arrhythmogenic event.
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About the authors
- Ekaterina B. Polyakova, Cand. Med. Sci., Senior Researcher; ORCID
- Tatyana A. Trofimova, Ultrasound Diagnostician; ORCID
- Mariya A. Shkolnikova, Dr. Med. Sci., Professor; ORCID
