Post-COVID paediatric dysautonomia is best conceptualised as a distributed brain-heart-vascular network disorder rather than a primary cardiac abnormality
The paper argues that post-COVID dysautonomia in children arises from complex interactions among central autonomic network dysfunction, neurovascular dysregulation, and impaired venous return, with tachycardia representing a compensatory physiological response. Clinical phenotypes include POTS, neurocardiogenic syncope, and orthostatic intolerance, often accompanied by fatigue, cognitive dysfunction, and sleep disturbances.
Evidence Score
Study Evidence
Study 1. Post-COVID paediatric dysautonomia: never the heart, always the brain-myth or maxim?
observationalDas B, Moodley M · Cardiology in the young (2026)
Result:
Mechanism Graph
Limitations
- ⚠Reported prevalence varies widely due to evolving definitions and heterogeneous referral patterns
- ⚠Important gaps remain in disease definitions, mechanistic understanding, and evidence-based treatment
Frequently Asked Questions
What is post-COVID paediatric dysautonomia?▼
It is a condition in children and adolescents following COVID-19, involving dysfunction of the autonomic nervous system, presenting with symptoms like dizziness, palpitations, fatigue, and syncope.
Is post-COVID dysautonomia primarily a heart problem?▼
No, the paper argues it is primarily a brain-heart-vascular network disorder, with tachycardia being a compensatory response rather than a primary cardiac abnormality.
What are the common clinical phenotypes?▼
Common phenotypes include postural orthostatic tachycardia syndrome (POTS), neurocardiogenic syncope, orthostatic hypotension, inappropriate sinus tachycardia, and undifferentiated orthostatic intolerance.
How is post-COVID dysautonomia managed?▼
Management follows a stepwise approach including patient education, trigger avoidance, hydration and salt optimisation, lower-body compression, exercise rehabilitation, pacing strategies, school accommodations, and phenotype-directed pharmacotherapy.
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References
- 1.Das B, Moodley M. "Post-COVID paediatric dysautonomia: never the heart, always the brain-myth or maxim?." Cardiology in the young, 2026. PMID: 42403377 DOI: 10.1017/S1047951126113900