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Updated: Jul 5, 2026

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Measuring Cardiac Autonomic Nervous System (ANS) Activity in Children
Published on: April 29, 2013
[Cardiac syncope in children].
Jolanta Oko-Lagan1, Jacek Kuzma, Beata Pietrucha
1Klinika Kardiologii Dzieciecej, Uniwersytet Jagielloński, Collegium Medicum w Krakowie. jokolagan@yahoo.com
Summary
Cardiogenic syncope in children is rare but indicates serious heart conditions. Structural heart defects lead to severe cases, while arrhythmias have a good prognosis with medication.
Area of Science:
- Pediatric Cardiology
- Cardiovascular Diseases
- Syncope Etiology
Context:
- Syncope affects 15% of children and adolescents.
- Neurocardiogenic syncope is most common (60-80%).
- Cardiogenic syncope (6%) requires urgent attention due to underlying pathology.
Purpose:
- Evaluate the incidence, causes, treatment, and prognosis of cardiogenic syncope in pediatric patients.
- Analyze risk factors and clinical presentation of syncope in children.
- Differentiate outcomes based on syncope etiology in pediatric populations.
Summary:
- A retrospective analysis of 18 pediatric patients with syncope revealed cardiogenic syncope is more frequent in those with structural heart abnormalities (66%) than arrhythmias (33%).
- Patients with structural heart disease experienced syncope triggered by exertion and presented with heart murmurs, left ventricular hypertrophy, and heart failure symptoms.
- Arrhythmia-related syncope occurred in younger patients, with ECG/Holter findings of arrhythmias or prolonged QTc, and responded well to pharmacotherapy.
Impact:
- Highlights the critical distinction between syncope types in pediatric patients.
- Informs clinical management strategies for pediatric syncope based on underlying cardiac conditions.
- Emphasizes the importance of prompt diagnosis and tailored treatment for improved outcomes in pediatric cardiogenic syncope.
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