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Growth hormone deficiency in children with antenatal Bartter syndrome.

Abstract
Background Bartter syndrome is a group of rare autosomal-recessive renal disorders characterized by hypokalemic hypochloremic metabolic alkalosis associated with severe growth failure; the exact causes for growth retardation are unclear. GH deficiency (GHD) has been reported in a few cases of Bartter syndrome. The aim of our study was to determine the prevalence of GHD in children with antenatal Bartter syndrome and to assess their response to GH therapy. Methods Ten patients aged 1.5-14.5 years and diagnosed with antenatal Bartter syndrome were enrolled. Seven children with short stature underwent GH stimulation tests. Results Common presenting symptoms were failure to thrive and polyuria. The mean patient height at study entry was -2.7 standard deviation (SD) (range 0.89 to -5.95) and mean weight (SD) was -1.7 (range 1.89 to -4.11). A decline in height and weight (SD) was observed over the years. GHD was diagnosed in four children and GH therapy was started in all of them. Two patients responded very well and gained >1 SD in height, one patient stopped therapy due to non-adherence and one had a poor response. Conclusions In addition to other important causes for poor growth in antenatal Bartter syndrome, our findings suggest that GHD should also be considered as a cause of growth retardation and therefore, clinical assessment of the GH axis is recommended. GH therapy has a role in the treatment of growth failure in some individuals with Bartter syndrome.
AuthorsInna Spector-Cohen, Ariel Koren, Waheeb Sakran, Yardena Tenenbaum-Rakover, Rephael Halevy
JournalJournal of pediatric endocrinology & metabolism : JPEM (J Pediatr Endocrinol Metab) Vol. 32 Issue 3 Pg. 225-231 (Mar 26 2019) ISSN: 2191-0251 [Electronic] Germany
PMID30844761 (Publication Type: Journal Article)
Chemical References
  • Human Growth Hormone
Topics
  • Adolescent
  • Bartter Syndrome (epidemiology)
  • Body Height (drug effects)
  • Child
  • Child, Preschool
  • Comorbidity
  • Female
  • Growth Disorders (drug therapy, epidemiology)
  • Human Growth Hormone (pharmacology, therapeutic use)
  • Humans
  • Hypopituitarism (drug therapy, epidemiology)
  • Infant
  • Male
  • Prevalence
  • Treatment Outcome

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