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[Thyroid function in prophylactic therapy with lithium (author's transl)]
Arzneimittel-Forschung
|January 1, 1978
Summary
Lithium treatment for 62 outpatients revealed significant thyroid dysfunction. Over 20% developed goiter, and many showed abnormal thyrotropin (TSH) levels or responses, indicating potential thyroid impacts.
Area of Science:
- Endocrinology
- Pharmacology
- Internal Medicine
Background:
- Lithium is a common mood stabilizer.
- Long-term lithium therapy can affect thyroid function.
- Monitoring thyroid health is crucial for patients on lithium.
Purpose of the Study:
- To evaluate thyroid function in outpatients receiving maintenance lithium treatment.
- To determine the prevalence of thyroid abnormalities in this cohort.
Main Methods:
- Study included 62 outpatients on maintenance lithium.
- Thyroid function tests were performed.
- Thyroid-stimulating hormone (TSH) and TSH response to thyrotropin-releasing hormone (TRH) were assessed.
Main Results:
- 21% of patients exhibited goiter (II0).
- 34% showed elevated serum TSH levels.
- 42% demonstrated an exaggerated TSH response to intravenous TRH.
Conclusions:
- Maintenance lithium treatment is associated with a high prevalence of thyroid dysfunction.
- Regular thyroid function monitoring is essential for patients on lithium therapy.
- Subclinical hypothyroidism and altered TSH regulation are common findings.