Twenty-four-hour urinary sodium excretion and postural orthostatic tachycardia syndrome
Abstract
Objective To investigate whether 24-hour urinary sodium excretion could be an indicator of the effectiveness of salt supplementation in children with postural orthostatic tachycardia syndrome (POTS).Study design The patient group comprised 30 children with POTS, and the control group comprised 10 healthy children. Serum sodium and 24-hour urinary sodium excretion were measured in all children, and the relationship between 24-hour urinary sodium and symptom severity was analyzed in the 30 patients. At 1 month after initiation of salt supplementation, the receiver operating characteristic curve was used to explore the probability of correctly discriminating responders to salt supplementation from nonresponders using 24-hour urinary sodium excretion as an indicator.Results Patients with POTS had lower 24-hour urinary sodium excretion than controls (P = .022). Symptom severity was negatively correlated with 24-hour urinary sodium excretion (OR, -0.754; P = .000). The receiver operating characteristic curve demonstrated a sensitivity of 76.9% and specificity of 93% for correct prediction of responders and nonresponders to salt supplementation when a 24-hour urinary sodium excretion of 124 mmol/24 hours was used as the cutoff value.Conclusion Our results indicate that 24-hour sodium excretion of <124 mmol/24 hours is an indicator of the effectiveness of salt supplementation in children and adolescents with POTS.
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Orthostatic intolerance symptoms in children with POTS have shown significant negative associations with 24-h sodium consumption/urinary excretion.
“negative associations with 24-h sodium consumption/urinary excretion (Zhang et al., 2012”
From Self-reported symptom burden in postural orthostatic tachycardia syndrome (POTS): A narrative review of observational and interventional studies (2023) · cites this paper as Zhang et al., 2012
Symptoms improve in children with POTS following supplementation with sodium chloride capsules.
“Symptoms improve in children with POTS following supplementation with sodium chloride capsules (11)”
From Effect of High Dietary Sodium Intake in Patients With Postural Tachycardia Syndrome (2021) · cites this paper as [11]
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- Authors
- Zhang, Q., Liao, Y., Tang, C., Du, J., & Jin, H.
- Affiliations
- Peking University First Hospital (CN)
- Peking University (CN)
- Corresponding author
- Jin, Hongfang
- Venue
- The Journal of Pediatrics
- Publisher
- Elsevier BV
- Published
- 2012-08
- Volume
- 161
- Issue
- 2
- Pages
- 281-284
- ISSN
- 0022-3476 (ISSN-L)
- OpenAlex
- W2140503782
- Cited by
- 66
- References
- 19
- Citations by year
- 2026: 1 · 2025: 2 · 2024: 4 · 2023: 5 · 2022: 7 · 2021: 7 · 2020: 8 · 2019: 7 · 2018: 3 · 2017: 4 · 2016: 6 · 2015: 1 · 2014: 11
- FWCI
- 3.91
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- The Journal of Pediatrics (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Health Sciences › Medicine › Surgery › Cardiovascular Syncope and Autonomic Disorders
- Health Sciences › Medicine › Pulmonary and Respiratory Medicine › Electrolyte and hormonal disorders
- Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Heart Rate Variability and Autonomic Control
- Keywords
- postural orthostatic tachycardia syndrome, 24-hour urinary sodium excretion, salt supplementation, children, adolescents, symptom severity, treatment response prediction, serum sodium, cut-off values
- MeSH terms
- Adolescent, Capsules, Child, Female, Humans, Male, Sensitivity and Specificity, Sodium, Sodium Chloride, Postural Orthostatic Tachycardia Syndrome
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