Palabras clave
Hipotiroidismo
triyodotironina
Cómo citar
Resumen
Introducción: el hipotiroidismo es una endocrinopatía caracterizada por la acción o la producción deficiente de las hormonas tiroideas en el organismo. Una de las etiologías menos frecuentes es la disfunción en las desyodasas, la cual puede sospecharse cuando el perfil tiroideo evidencia hormona tiroestimulante (TSH) elevada, tiroxina (T4) libre alta con triyodotironina (T3) total o libre baja.
Objetivo: dar a conocer un caso de hipotiroidismo tratado exitosamente con selenio y levotiroxina, así como describir el papel del selenio en la enfermedad tiroidea.
Presentación del caso: hombre de 22 años con alteraciones en el perfil tiroideo caracterizado por TSH y T4 libre altas y T3 en el límite inferior, sin hallazgo de adenomas de hipófisis, mutaciones en el gen receptor de hormona tiroidea (THRB)
o alteraciones en las globulinas transportadoras de tiroxina, que se trató exitosamente con suplencia de hormona tiroidea y selenio.
Discusión y conclusión: frente a concentraciones anómalas en los niveles de TSH, T4 y T3, no fácilmente explicables por otras causas, las alteraciones en la síntesis o función de las desyodasas deben considerarse. El tratamiento con selenio y levotiroxina podría ayudar en el manejo de esta patología.
Citas
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