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Adrenal dysfunction in critically ill children.

G Karagüzel1, E Cakir

  • 1Department of Pediatric Endocrinology Karadeniz Technical University, School of Medicine, Trabzon, Turkey - gulkarag@hotmail.com.

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Summary

Adrenal insufficiency (AI) is common in critically ill children, affecting both septic and non-septic patients. Diagnosis and treatment strategies for pediatric AI remain inconsistent among specialists.

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Area of Science:

  • Pediatric Endocrinology
  • Critical Care Medicine
  • Hormone Physiology

Background:

  • Cortisol, a key glucocorticoid, is regulated by the hypothalamic-pituitary axis.
  • Critical illness disrupts this axis, increasing corticotrophin-releasing hormone and corticotrophin, while decreasing negative feedback.
  • Adrenal insufficiency (AI) in critically ill children is defined by an inadequate cortisol response to ACTH stimulation.

Purpose of the Study:

  • To review the current understanding of adrenal insufficiency in critically ill children.
  • To highlight the prevalence and diagnostic challenges of AI in this population.
  • To underscore the need for a consensus on AI management in pediatric critical care.

Main Methods:

  • Review of existing pediatric studies on AI during critical illness.
  • Analysis of AI prevalence in septic versus non-septic critically ill children.
  • Examination of diagnostic criteria and treatment approaches for pediatric AI.

Main Results:

  • Clinically apparent AI is uncommon, but the incidence varies widely based on underlying conditions and diagnostic definitions.
  • While sepsis-associated mechanisms are implicated, recent studies suggest AI is prevalent in both septic and non-septic critically ill children.
  • The prevalence of AI did not significantly differ between septic and non-septic pediatric patients.

Conclusions:

  • Adrenal insufficiency is a noteworthy condition in critically ill children, irrespective of sepsis.
  • A multidisciplinary approach is essential for managing pediatric AI.
  • A lack of consensus among pediatric intensivists and endocrinologists hinders standardized diagnosis and treatment of AI in pediatric critical illness.