Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)

Background: Congenital hypothyroidism is one of the most frequent endocrine diseases of the newborn and requires an early diagnosis to avoid its deleterious effects on neurological and intellectual functions. Aim: To evaluate thyroid scintigraphy (TS) findings in newborns with congenital hypothyroid...

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Autores principales: Lobo S,Gabriel, Ladrón de Guevara H,David, Arnello V,Francisca, Pérez R,Andrés, Vivanco W,Ximena, Bruggendieck M,Bernardo, Bustos M,María Eliana, Jiménez J,César, Donoso R,Gilda, Brantes M,Jorge, Becerra F,Carlos
Lenguaje:Spanish / Castilian
Publicado: Sociedad Médica de Santiago 2003
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Acceso en línea:http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300006
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spelling oai:scielo:S0034-988720030003000062004-12-13Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)Lobo S,GabrielLadrón de Guevara H,DavidArnello V,FranciscaPérez R,AndrésVivanco W,XimenaBruggendieck M,BernardoBustos M,María ElianaJiménez J,CésarDonoso R,GildaBrantes M,JorgeBecerra F,Carlos Cretinism Hypothyroidism Myxedema Radionuclide Imaging Background: Congenital hypothyroidism is one of the most frequent endocrine diseases of the newborn and requires an early diagnosis to avoid its deleterious effects on neurological and intellectual functions. Aim: To evaluate thyroid scintigraphy (TS) findings in newborns with congenital hypothyroidism (CH), detected in the national program of newborn screening, which is working in Chile since 1992. Material and methods: TS findings of 189 newborns with CH (68% female) were analyzed. Tc99m pertechnetate TS was performed at 19 ± 11 days of life. The gland was classified as eutopic, ectopic or absence of contrast (AC). Eutopic glands were classified by visual and quantitative criteria as: normal, goiter and decreased contrast (DC). TS results were compared by gender and hormonal levels. Results: Forty seven percent of newborns had ectopy, 29.1% eutopy and 24.3% AC. Eutopic gland predominated in males (44.2% vs 22.7%) and ectopy was more frequent in girls (53.1% vs 32.8%, p <0.05). Newborns with AC had the most severe hormonal alterations, without gender differences. Newborns with normal TS had less hormonal alterations than those with goiter. Conclusions: TS allows an etiological classification of CH. Thyroid dysgenesis is the most frequent cause, most of which correspond to ectopy, especially in girls. Eutopic glands are present in one third of newborns with CH. Goiter predominates, especially in males (Rev Méd Chile 2003; 131: 283-9).info:eu-repo/semantics/openAccessSociedad Médica de SantiagoRevista médica de Chile v.131 n.3 20032003-03-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300006es10.4067/S0034-98872003000300006
institution Scielo Chile
collection Scielo Chile
language Spanish / Castilian
topic Cretinism
Hypothyroidism
Myxedema
Radionuclide Imaging
spellingShingle Cretinism
Hypothyroidism
Myxedema
Radionuclide Imaging
Lobo S,Gabriel
Ladrón de Guevara H,David
Arnello V,Francisca
Pérez R,Andrés
Vivanco W,Ximena
Bruggendieck M,Bernardo
Bustos M,María Eliana
Jiménez J,César
Donoso R,Gilda
Brantes M,Jorge
Becerra F,Carlos
Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
description Background: Congenital hypothyroidism is one of the most frequent endocrine diseases of the newborn and requires an early diagnosis to avoid its deleterious effects on neurological and intellectual functions. Aim: To evaluate thyroid scintigraphy (TS) findings in newborns with congenital hypothyroidism (CH), detected in the national program of newborn screening, which is working in Chile since 1992. Material and methods: TS findings of 189 newborns with CH (68% female) were analyzed. Tc99m pertechnetate TS was performed at 19 ± 11 days of life. The gland was classified as eutopic, ectopic or absence of contrast (AC). Eutopic glands were classified by visual and quantitative criteria as: normal, goiter and decreased contrast (DC). TS results were compared by gender and hormonal levels. Results: Forty seven percent of newborns had ectopy, 29.1% eutopy and 24.3% AC. Eutopic gland predominated in males (44.2% vs 22.7%) and ectopy was more frequent in girls (53.1% vs 32.8%, p <0.05). Newborns with AC had the most severe hormonal alterations, without gender differences. Newborns with normal TS had less hormonal alterations than those with goiter. Conclusions: TS allows an etiological classification of CH. Thyroid dysgenesis is the most frequent cause, most of which correspond to ectopy, especially in girls. Eutopic glands are present in one third of newborns with CH. Goiter predominates, especially in males (Rev Méd Chile 2003; 131: 283-9).
author Lobo S,Gabriel
Ladrón de Guevara H,David
Arnello V,Francisca
Pérez R,Andrés
Vivanco W,Ximena
Bruggendieck M,Bernardo
Bustos M,María Eliana
Jiménez J,César
Donoso R,Gilda
Brantes M,Jorge
Becerra F,Carlos
author_facet Lobo S,Gabriel
Ladrón de Guevara H,David
Arnello V,Francisca
Pérez R,Andrés
Vivanco W,Ximena
Bruggendieck M,Bernardo
Bustos M,María Eliana
Jiménez J,César
Donoso R,Gilda
Brantes M,Jorge
Becerra F,Carlos
author_sort Lobo S,Gabriel
title Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
title_short Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
title_full Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
title_fullStr Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
title_full_unstemmed Cintigrafía tiroidea (CT) con Tc99m- pertecnectato en recién nacidos (RN) con hipotiroidismo congénito (HC)
title_sort cintigrafía tiroidea (ct) con tc99m- pertecnectato en recién nacidos (rn) con hipotiroidismo congénito (hc)
publisher Sociedad Médica de Santiago
publishDate 2003
url http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0034-98872003000300006
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