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Total thyroxine, triiodothyronine, and thyrotropin concentrations during acute nonthyroidal illness and recovery in dogs.
Corsini, Andrea; Del Baldo, Francesca; Lunetta, Francesco; Ribichini, Serena; Giunti, Massimo; Fidanzio, Francesca; Fracassi, Federico.
Afiliación
  • Corsini A; Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Ozzano Emilia, Italy.
  • Del Baldo F; Department of Veterinary Medical Sciences, University of Parma, Parma, Italy.
  • Lunetta F; Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Ozzano Emilia, Italy.
  • Ribichini S; Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Ozzano Emilia, Italy.
  • Giunti M; Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Ozzano Emilia, Italy.
  • Fidanzio F; Department of Veterinary Medical Sciences, Alma Mater Studiorum-University of Bologna, Ozzano Emilia, Italy.
  • Fracassi F; Department of Veterinary Medical Sciences, University of Parma, Parma, Italy.
J Vet Intern Med ; 38(3): 1345-1352, 2024.
Article en En | MEDLINE | ID: mdl-38654457
ABSTRACT

BACKGROUND:

Acute illness can result in changes in serum total thyroxine (tT4), total triiodothyronine (tT3), and thyrotropin (TSH) concentrations in euthyroid dogs defined as nonthyroidal illness syndrome, but longitudinal evaluation of these hormones during the recovery phase is lacking.

OBJECTIVES:

To longitudinally evaluate serum tT4, tT3, and TSH concentrations during the acute phase and recovery from acute illness in dogs. ANIMALS Nineteen euthyroid client-owned dogs hospitalized for acute illness at a veterinary teaching hospital.

METHODS:

Prospective longitudinal study. Serum tT4, tT3, and TSH concentrations were measured at the admission (T0), at last day of hospitalization (T1), and during the recovery phase at 3, 7, 14, and 21 days after the discharge (T2, T3, T4, and T5), respectively.

RESULTS:

tT4 and tT3 were below the reference interval (RI) at T0 in 3 (16%) and 18 (95%) dogs, respectively; tT4 normalized in all dogs early in the recovery phase, while low tT3 persisted at the end of the study in 16 (83%) dogs. Median TSH concentrations were increased at T5 compared with T1 (0.19 ng/mL [range 0.03-0.65] vs 0.11 ng/mL [range (0.05-0.26)], mean difference = 0.09 ng/mL; P = .03). Five (26%) dogs had TSH above the RI at least at 1 time point during the recovery phase. None of the dogs had concurrent low tT4 and high TSH during the study. CONCLUSIONS AND CLINICAL RELEVANCE In euthyroid dogs acute illness can interfere with evaluation of thyroid function up to 21 days during the recovery phase. Thyroid testing should be avoided or postponed in these dogs.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tiroxina / Triyodotironina / Tirotropina / Enfermedades de los Perros Límite: Animals Idioma: En Revista: J Vet Intern Med Asunto de la revista: MEDICINA INTERNA / MEDICINA VETERINARIA Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos
Texto completo
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Imprimir
XML
PubMed Links
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Tiroxina / Triyodotironina / Tirotropina / Enfermedades de los Perros Límite: Animals Idioma: En Revista: J Vet Intern Med Asunto de la revista: MEDICINA INTERNA / MEDICINA VETERINARIA Año: 2024 Tipo del documento: Article País de afiliación: Italia Pais de publicación: Estados Unidos