Transitory subclinical and permanent hypothyroidism in the course of subacute thyroiditis (de Quervain)

Alfredo Pontecorvi, S. Lio, M. Caruso, F. Monaco, M. D'Armiento

Risultato della ricerca: Contributo in rivistaArticolo in rivista

40 Citazioni (Scopus)

Abstract

Sixty-two patients affected with subacute thyroiditis (SAT) were followed for a mean period of 14 months (range 1-40), by monitoring thyroid hormone levels in basal condition, pituitary TSH reserve, antithyroglobulin (TgAb) and antimicrosomal antibodies ( MsAb ), in order to study the natural course of the disease and to characterize its intermediate phase. In the first phase the mean serum iodothyronine levels were within normal limits, nevertheless elevated T3 and T4 levels were detected in 34 (54%) and 20 (32%) patients, respectively. The next phase was characterized by normal serum iodothyronine levels; TRH stimulation test, however, showed a significant increase of pituitary TSH reserve in 35 (56%) patients. All parameters reverted gradually towards normal in all but 3 patients, who showed overt permanent hypothyroidism. TgAb and MsAb were positive in the early stage in 15 (24%) and 40 (64%) patients, respectively, disappearing at the end of the follow-up period in all but one patient; this particular patient belonged to the group of 3 patients affected with permanent hypothyroidism. Our data indicate that the onset of SAT is characterized by transient hyperthyroidism and that transient subclinical hypothyroidism characterizes the next phase. TRH stimulation test is required for the diagnosis of the latter and for the identification of the few who develop permanent hypothyroidism.
Lingua originaleEnglish
pagine (da-a)67-70
Numero di pagine4
RivistaActa Endocrinologica
Volume106
Stato di pubblicazionePubblicato - 1984

Keywords

  • Adolescent
  • Adult
  • Antibodies
  • Female
  • Follow-Up Studies
  • Humans
  • Hypothyroidism
  • Male
  • Middle Aged
  • Thyroglobulin
  • Thyroiditis
  • Thyrotropin
  • Thyrotropin-Releasing Hormone
  • Thyroxine
  • Triiodothyronine

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