2011
DOI: 10.1007/s10545-011-9286-8
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Newborn screening for congenital hypothyroidism in very‐low‐birth‐weight babies: the need for a second test

Abstract: Significant hypothyroidism, transient or permanent, but persisting beyond 2 months of age is common in VLBW babies. There is a delayed rise in TSH in some, and secondary screening at 1 month of age detects babies deemed by local paediatric endocrinologists as needing treatment.

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Cited by 62 publications
(47 citation statements)
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“…NICU, and newborns from multiple births [4,[12][13][14][15][16]. In these situations, the diagnosis of CH-T may be overlooked due to the suppression of the TSH level as a result of various drugs, hypothalamo-pituitary immaturity, and other effects of serious illness [17,18].…”
Section: Discussionmentioning
confidence: 99%
See 1 more Smart Citation
“…NICU, and newborns from multiple births [4,[12][13][14][15][16]. In these situations, the diagnosis of CH-T may be overlooked due to the suppression of the TSH level as a result of various drugs, hypothalamo-pituitary immaturity, and other effects of serious illness [17,18].…”
Section: Discussionmentioning
confidence: 99%
“…For this purpose, repetitive TSH level measurement is recommended for preterm and/or LBW newborns [14][15][16]. In Kanagawa Prefecture, an additional filter paper sampling is routinely requested for newborns with a birth weight of <2,000 g at approximately 1 month of age, and this sample is treated as the first sample.…”
Section: Discussionmentioning
confidence: 99%
“…In the study groups with a positive effect of L-thyroxine on the development of preterm babies, a dose of 6-8 μg/kg body weight was used, slightly improving mental development after 5-10 years. However, the greatest problem with decision making is a lack of universal reference values for fT4 and fT3 in preterm newborns [42][43][44][45][46][47][48][49][50][51]. Venous blood TSH values in preterm babies in the first week of life determined with a TSH third-generation test oscillating between 0.7 mIU/l and 27.0 mIU/l [52].…”
Section: Szkolenie Podyplomowementioning
confidence: 99%
“…W dotychczas obserwowanych grupach, w których stwierdzono pozytywny wpływ leczenia L-tyroksyną na rozwój wcześniaków, stosowano dawkę 6-8 μg/kg masy ciała, co powodowało nieco lepszy rozwój umysłowy widoczny po 5-10 latach. Jednak największym problemem przy podejmowaniu decyzji jest brak jednolicie opracowanych wartości referencyjnych fT4 i fT3 u noworodków przedwcześnie urodzonych [42][43][44][45][46][47][48][49][50][51]. Wartości TSH w surowicy krwi żylnej u wcześniaków w pierwszym tygodniu życia oznaczane testem trzeciej generacji oscylują pomiędzy 0,7 mIU/l a 27,0 mIU/l [52].…”
unclassified
“…19 La persistencia de TSH elevada en los RN de muy bajo peso (<1500g) ha permitido proponer una segunda evaluación al mes de vida en esta población, y a algunos autores preguntarse si se debería considerar un valor límite diferente para estos casos. 19,20 Si además de la influencia de los factores referidos, observamos las fluctuaciones fisiológicas de TSH en el período neonatal, podríamos inferir que al ajustar el valor obtenido a la edad del recién nacido (RN) mejoraría la especificidad del diagnóstico en situaciones inciertas. Al respecto, Soldin y cols., expresan: "…los intervalos de referencia son una herramienta que ayuda a interpretar los resultados del laboratorio en pacientes individuales" concepto reforzado por Hubner y cols.…”
Section: Introductionunclassified