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Orphanet J Rare Dis ; 10: 106, 2015 Sep 02.
Artículo en Inglés | MEDLINE | ID: mdl-26329144

RESUMEN

BACKGROUND: Children with Prader-Willi Syndrome (PWS) have been considered at risk for central adrenal insufficiency (CAI). Hypothalamic dysregulation has been proposed as a common mechanism underlying both stress-induced CAI and central respiratory dysfunction during sleep. OBJECTIVE: To evaluate CAI and sleep-related breathing disorders in PWS children. PATIENTS AND METHODS: Retrospective study of cortisol response following either insulin tolerance test (ITT) or glucagon test (GT) in 20 PWS children, and comparison with 33 non- Growth Hormone deficient (GHD) controls. Correlation between sleep related breathing disorders and cortisol response in 11 PWS children who received both investigations. RESULTS: In PWS children, the cortisol peak value showed a significant, inverse correlation with age (Kendall's τ = -0.411; p = 0.012). A similar though non-significant correlation was present between cortisol increase and age (τ = -0.232; p = 0.16). Similar correlations were found in controls. In only 1 of 20 PWS children (5 %), ITT was suggestive of CAI. Four patients had an elevated central apnea index but they all exhibited a normal cortisol response. No relationship was found between peak cortisol or cortisol increase and central apnea index (respectively p = 0.94 and p = 0.14) or the other studied polysomnography (PSG) parameters. CONCLUSIONS: CAI assessed by ITT/GT is rare in PWS children. Our data do not support a link between CAI and central respiratory dysregulation.


Asunto(s)
Sistema Hipotálamo-Hipofisario , Sistema Hipófiso-Suprarrenal , Síndrome de Prader-Willi/fisiopatología , Respiración , Estudios de Casos y Controles , Niño , Preescolar , Glucagón/administración & dosificación , Hormona del Crecimiento/administración & dosificación , Humanos , Hidrocortisona/administración & dosificación , Hidrocortisona/sangre , Lactante , Insulina/administración & dosificación , Estudios Retrospectivos
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