Hypothalamic adipsic hypernatraemia syndrome must be suspected when a dehydrated patient denies thirst. The study of antidiuretic function is necessary because the osmoregulation of vasopressin secretion could be altered.
AbstractBackgroundCongenital hyperinsulinism (CH) is the most frequent cause of persistent hypoglycemia in the newborn. Octreotide, a long-acting somatostatin receptor analog (SSRA), is a second line treatment for diazoxide unresponsive CH patients. Although it has been found to be a safe and effective treatment, long-term benefits and side effects, have not been thoroughly evaluated.Case presentationSome authors have indicated that exocrine pancreatic insufficiency (EPI) is a common but under-recognized adverse reaction in adults treated with octreotide. However, no pediatric patient with SSRA-induced EPI has been reported to date. Here we report a case of an infant with diazoxide unresponsive, diffuse CH, caused by a heterozygous pathogenic paternally inherited mutation in the ABCC8 gene (NM_000352.4:c.357del), that developed exocrine pancreatic insufficiency and secondary vitamin K deficiency associated to chronic octreotide therapy.ConclusionsWe point out the atypical clinical onset with a cutaneous hemorrhagic syndrome, emphasizing the clinical relevance of this potential side effect.
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