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. 1975 Oct 18;4(5989):129–130. doi: 10.1136/bmj.4.5989.129

Serum thyrotrophin concentration: an unreliable test for detection of early hypothyroidism after thyroidectomy.

G Hennemann, M Van Welsum, B Bernard, R Docter, T J Visser
PMCID: PMC1674818  PMID: 1191964

Abstract

Three groups of patients who had undergone subtotal thyroidectomy for Graves's disease, toxic multinodular goitre, or euthyroid multinodular goitre 12 to 15 years before and in whom a normal serum thyroxine (T-4) level was found were each divided into two subgroups on the basis of a normal or a raised serum thyrotrophin concentration. There was no difference in mean serum T-4 concentration between patients with normal and those with raised serum thyrotrophin concentrations, and the values were similar to the mean T-4 values of the normal population. The mean serum triiodothyronine values of all groups were higher than normal, but the mean values of the groups with a normal and a raised serum thyrotrophin were similar. After thyroidectomy a mildly raised serum thyrotrophin does not in itself indicate the presence of hypothyroidism.

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Selected References

These references are in PubMed. This may not be the complete list of references from this article.

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