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Pediatric idiopathic intracranial hypertension and the underlying endocrine-metabolic dysfunction: a pilot study
Aim:
To unravel the potential idiopathic intracranial hypertension (IIH) endocrine-metabolic comorbidities by studying the natural (and targeted drug-modified) history of disease in children. IIH is a disorder of unclear pathophysiology, characterized by raised intracranial pressure without hydrocephalus or space-occupying lesion coupled with normal cerebrospinal fluid (CSF) composition.
Methods:
Retrospective study (years 2001-2010) of clinical records and images and prospective follow-up (years 2010-2013) in 15 children (11 girls, 4 boys; aged 5-16 years) diagnosed previously as "IIH", according to the criteria for pediatric IIH proposed by Rangwala, at four university pediatric centers in northern, central, and southern Italy.
Results:
We identified six potential endocrine-metabolic comorbidities including, weight gain and obesity (n=5), recombinant growth hormone therapy (n=3), obesity and metabolic syndrome (n=1), secondary hyperaldosteronism (n=1), hypervitaminosis A (n=1), and corticosteroid therapy (n=1). Response to etiologically targeted treatments (e.g., spironolactone, octreotide) was documented.
Conclusions:
IIH is a protean syndrome caused by various potential (risk and) associative factors. Several conditions could influence the pressure regulation of CSF. An endocrine-metabolic altered homeostasis could be suggested in some IIH patients, and in this context, etiologically targeted therapies (spironolactone) should be considered.
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