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Related Experiment Videos

[Acute poisoning with thyroxine in children].

H García1, P Michaud, M Rojas

  • 1Servicio Pediatría, Hospital Sótero del Río.

Revista Chilena De Pediatria
|November 1, 1990
PubMed
Summary

Two children ingested L-thyroxine (thyroid hormone) and were treated with Iopanoic acid. This drug effectively blocked thyroid hormone conversion, lowering T3 levels within 48 hours.

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Area of Science:

  • Endocrinology
  • Clinical Pharmacology

Background:

  • L-thyroxine (thyroid hormone) overdose can lead to significant health risks.
  • Early intervention is crucial for managing thyrotoxicosis resulting from overdose.

Observation:

  • Two pediatric patients ingested substantial amounts of L-thyroxine.
  • Initial presentation was asymptomatic despite elevated serum T4 levels.
  • Treatment involved Iopanoic acid to inhibit T4 to T3 conversion.

Findings:

  • Iopanoic acid administration successfully reduced serum T3 levels within 48 hours.
  • Elevated serum T4 levels persisted for up to 10 days post-ingestion.
  • The treatment demonstrated efficacy in managing acute L-thyroxine toxicity.

Implications:

  • Iopanoic acid is a potential treatment of choice for L-thyroxine overdose by blocking T4 to T3 conversion.
  • Patients with L-thyroxine ingestion, even if initially asymptomatic, require hospital admission and monitoring due to delayed symptom onset.
  • This case highlights the importance of prompt and appropriate pharmacological intervention in thyroid hormone toxicity.

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