Han JY, Lee IG, Shin S, Park J. Seizure duration may increase thyroid-stimulating hormone levels in children experiencing a seizure.
J Int Med Res 2019;
48:300060519888401. [PMID:
31774013 PMCID:
PMC7265565 DOI:
10.1177/0300060519888401]
[Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Objective
Variations in hormone levels are a direct effect of epileptic discharges in
both animals and humans, and seizure can affect the
hypothalamus–pituitary–thyroid axis. The purpose of this study was to
determine which parameters could affect the alternation of thyroid hormones
in children experiencing seizure.
Methods
We retrospectively reviewed the medical records of 181 pediatric patients
with seizure and compared three thyroid hormones (serum thyroid-stimulating
hormone [TSH], free thyroxine [fT4], and triiodothyronine [T3]) between
initial (admission to hospital) and follow-up (2 weeks later) testing.
Results
Multivariable logistic regression models were used to determine which six
parameters (gender, age, seizure accompanying with fever, seizure type,
seizure duration, and anti-epileptic drug medication) could help to explain
the higher initial TSH levels in pediatric seizure. Only seizure duration in
patients with an increase in TSH levels was significantly longer compared
with patients with normal TSH at the time of initial testing.
Conclusion
Neuronal excitability by seizure can cause thyroid hormonal changes, which
likely reflects changes in hypothalamic function.
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