CONTEXT AND OBJECTIVES: The objective of this study was to elucidate the influence of disease severity, deiodination, sulfation, thyroid hormone binding, and dopamine use on thyroid function in euthyroid sick syndrome. SETTING: The study was performed at a university-affiliated pediatric intensive care unit (PICU). DESIGN: This was an observational cohort study. PATIENTS: Sixty-nine children with meningococcal sepsis were studied. MAIN OUTCOME MEASURES: Differences in thyroid function among nonsurvivors, shock survivors, and sepsis survivors on PICU admission were the main outcome measures. RESULTS: The main study group consisted of 45 non-dopamine-treated children. All children had decreased total T3 (TT3)/rT3 ratios without elevated TSH. T4 sulfate levels were decreased in 88%. Nonsurvivors had paradoxically higher TT3/rT3 ratios than shock survivors (0.71 vs. 0.30); this ratio also correlated with shorter duration of disease (r = -0.43). TT4 and T4-binding globulin (TBG) levels declined with increasing disease severity. TBG levels correlated inversely with elastase levels (r = -0.46). Only TSH levels were significantly lower in 24 dopamine-treated children compared with non-dopamine-treated children (0.65 vs. 0.84), whereas other thyroid hormones did not significantly differ. Both higher TT3/rT3 ratios and lower TT4 levels were predictive for mortality, but this disappeared when IL-6 was entered into the regression model. CONCLUSIONS: All children with meningococcal sepsis showed signs of euthyroid sick syndrome. Alterations in peripheral thyroid hormone metabolism related inversely to the duration of disease and seemed to be enacted by profound induction of type 3 deiodinase rather than by down-regulation of type 1. Lower TT4 levels were related to increased turnover of TBG by elastase. Dopamine was found to suppress only TSH secretion, not other thyroid hormone levels, on PICU admission. Both the TT3/rT3 ratio and TT4 levels were predictive for mortality, but were not superior to IL-6.
CONTEXT AND OBJECTIVES: The objective of this study was to elucidate the influence of disease severity, deiodination, sulfation, thyroid hormone binding, and dopamine use on thyroid function in euthyroid sick syndrome. SETTING: The study was performed at a university-affiliated pediatric intensive care unit (PICU). DESIGN: This was an observational cohort study. PATIENTS: Sixty-nine children with meningococcal sepsis were studied. MAIN OUTCOME MEASURES: Differences in thyroid function among nonsurvivors, shock survivors, and sepsis survivors on PICU admission were the main outcome measures. RESULTS: The main study group consisted of 45 non-dopamine-treated children. All children had decreased total T3 (TT3)/rT3 ratios without elevated TSH. T4 sulfate levels were decreased in 88%. Nonsurvivors had paradoxically higher TT3/rT3 ratios than shock survivors (0.71 vs. 0.30); this ratio also correlated with shorter duration of disease (r = -0.43). TT4 and T4-binding globulin (TBG) levels declined with increasing disease severity. TBG levels correlated inversely with elastase levels (r = -0.46). Only TSH levels were significantly lower in 24 dopamine-treated children compared with non-dopamine-treated children (0.65 vs. 0.84), whereas other thyroid hormones did not significantly differ. Both higher TT3/rT3 ratios and lower TT4 levels were predictive for mortality, but this disappeared when IL-6 was entered into the regression model. CONCLUSIONS: All children with meningococcal sepsis showed signs of euthyroid sick syndrome. Alterations in peripheral thyroid hormone metabolism related inversely to the duration of disease and seemed to be enacted by profound induction of type 3 deiodinase rather than by down-regulation of type 1. Lower TT4 levels were related to increased turnover of TBG by elastase. Dopamine was found to suppress only TSH secretion, not other thyroid hormone levels, on PICU admission. Both the TT3/rT3 ratio and TT4 levels were predictive for mortality, but were not superior to IL-6.
Authors: Lisette Leeuwen; Arno F J van Heijst; Sanne Vijfhuize; Leonardus W J E Beurskens; Gert Weijman; Dick Tibboel; Erica L T van den Akker; Hanneke IJsselstijn Journal: Neonatology Date: 2016-09-17 Impact factor: 4.035
Authors: L Leeuwen; A F J van Heijst; J van Rosmalen; Y B de Rijke; L W J E Beurskens; D Tibboel; E L T van den Akker; H IJsselstijn Journal: J Perinatol Date: 2017-04-27 Impact factor: 2.521
Authors: Joe Brierley; Joseph A Carcillo; Karen Choong; Tim Cornell; Allan Decaen; Andreas Deymann; Allan Doctor; Alan Davis; John Duff; Marc-Andre Dugas; Alan Duncan; Barry Evans; Jonathan Feldman; Kathryn Felmet; Gene Fisher; Lorry Frankel; Howard Jeffries; Bruce Greenwald; Juan Gutierrez; Mark Hall; Yong Y Han; James Hanson; Jan Hazelzet; Lynn Hernan; Jane Kiff; Niranjan Kissoon; Alexander Kon; Jose Irazuzta; Jose Irazusta; John Lin; Angie Lorts; Michelle Mariscalco; Renuka Mehta; Simon Nadel; Trung Nguyen; Carol Nicholson; Mark Peters; Regina Okhuysen-Cawley; Tom Poulton; Monica Relves; Agustin Rodriguez; Ranna Rozenfeld; Eduardo Schnitzler; Tom Shanley; Saraswati Kache; Sara Skache; Peter Skippen; Adalberto Torres; Bettina von Dessauer; Jacki Weingarten; Timothy Yeh; Arno Zaritsky; Bonnie Stojadinovic; Jerry Zimmerman; Aaron Zuckerberg Journal: Crit Care Med Date: 2009-02 Impact factor: 7.598
Authors: Jennifer J Verhoeven; Marieke den Brinker; Anita C S Hokken-Koelega; Jan A Hazelzet; Koen F M Joosten Journal: Crit Care Date: 2011-01-31 Impact factor: 9.097