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Related Experiment Videos

[Petit mal status in hyperthyroidism].

G Kahaly1, B Tettenborn, V Mihaljevic

  • 1Abteilung für Innere Medizin und Endokrinologie, Universität Mainz.

Deutsche Medizinische Wochenschrift (1946)
|October 20, 1989
PubMed
Summary
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A woman experienced a seizure and confusion due to an overactive thyroid (thyrotoxicosis). Prompt thyrostatic treatment normalized her condition and EEG, highlighting the link between thyroid storm and neurological symptoms.

Area of Science:

  • Neurology
  • Endocrinology
  • Internal Medicine

Background:

  • Thyroid storm, a severe form of thyrotoxicosis, can present with diverse and severe symptoms.
  • Neurological manifestations, including seizures and altered mental status, are recognized but less common complications of thyroid storm.
  • Effective management of thyroid storm is crucial for resolving both endocrine and neurological disturbances.

Observation:

  • A 68-year-old woman presented with new-onset generalized tonic-clonic seizure and persistent confusional state.
  • Physical examination revealed thyroid nodularity and tachycardic arrhythmia.
  • Electroencephalography (EEG) showed a continuous irregular polyspike wave pattern, indicative of significant cerebral dysfunction.

Findings:

  • Elevated total T4 concentration (23 micrograms/dl) confirmed hyperthyroidism.

Related Experiment Videos

  • Standard anticonvulsant and sedative medications (phenytoin, clonazepam, midazolam) failed to improve clinical or EEG findings.
  • High-dose intravenous thyrostatic treatment (thiamazole 40 mg every four hours) alongside intensive care led to complete clinical and neurological recovery.

    • Implications:

    • This case underscores the critical importance of considering and aggressively treating thyroid storm in patients presenting with new-onset seizures and altered mental status.
    • Prompt and intensive thyrostatic therapy is essential for reversing neurological deficits associated with thyroid storm.
    • Serial EEG monitoring can effectively track recovery from thyroid storm-induced encephalopathy.