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Published on: April 25, 2016
Adrenal Insufficiency After Glucocorticoid Use in the Pediatric Intensive Care Unit
Ashley N Radig1, Vanessa A Curtis1, Erik Westlund2
1Stead Family Department of Pediatrics, University of Iowa Carver College of Medicine, Iowa City, IA, USA.
Insights
Pediatric critical illness survivors receiving glucocorticoids have a 2.3% risk of developing adrenal insufficiency. Younger age, longer hospital stays, and higher glucocorticoid doses were associated with this condition, necessitating further research.
Area of Science:
- Pediatric Critical Care Medicine
- Endocrinology
- Pharmacology
Background:
- Glucocorticoids are frequently administered to critically ill children.
- Glucocorticoid use in pediatric intensive care units (PICU) may lead to subsequent adrenal insufficiency.
- Adrenal insufficiency contributes to morbidity in survivors of pediatric critical illness.
Purpose of the Study:
- To determine the prevalence of adrenal insufficiency in children exposed to glucocorticoids during PICU admission.
- To identify risk factors associated with the development of adrenal insufficiency in this population.
Main Methods:
- Retrospective cohort study involving a structured medical record review.
- Inclusion of pediatric patients (0-18 years) admitted to an academic tertiary referral PICU over two years who received glucocorticoids.
- Analysis of clinical characteristics and diagnosis of adrenal insufficiency.
Main Results:
- Adrenal insufficiency was diagnosed in 2.3% of 530 patients who received glucocorticoids.
- Patients with adrenal insufficiency were younger, had longer PICU and hospital stays, and a lower 1-year survival rate.
- Higher glucocorticoid doses and use for hyperinflammation were associated with adrenal insufficiency, while steroid taper was more frequent.
Conclusions:
- A notable percentage of pediatric patients receiving glucocorticoids in the PICU develop adrenal insufficiency.
- Potential risk factors for post-glucocorticoid adrenal insufficiency were identified.
- Further research is warranted to understand and mitigate the impact of adrenal insufficiency on critically ill children's outcomes.
Abstract:
IntroductionGlucocorticoids are commonly used in pediatric critical illness and may lead to subsequent adrenal insufficiency, causing morbidity among pediatric intensive care unit (PICU) survivors. We aimed to determine the prevalence of and risk factors for adrenal insufficiency among children who received glucocorticoids during PICU admission.MethodsWe conducted a retrospective cohort study using structured medical record review to determine the prevalence of adrenal insufficiency and clinical characteristics of PICU patients 0-18 years old who received enteral and/or parenteral glucocorticoids. Patients were consecutively admitted to an academic tertiary referral PICU over 2 years.ResultsAmong 530 patients who received glucocorticoids, 12 (2.3%) were diagnosed with adrenal insufficiency at a median of 55 (IQR 8-156) days after initial glucocorticoid exposure. Unadjusted analyses showed that patients with adrenal insufficiency were younger (median 0.5 vs 2 years, p = .020), had a longer PICU stay (79 vs 4 days, p < .001) and hospital stay (96 vs 6 days, p < .001), and had a lower survival rate at 1 year after PICU discharge (75% vs 94%, p = .033). There were no significant differences in sex, race/ethnicity, illness severity, or diagnostic categories. Patients with adrenal insufficiency were more likely to have received glucocorticoids for hyperinflammation (21% vs 8%) and less likely for reactive airway disease (10% vs 26%) (p = .036), had a higher median total hydrocortisone equivalent dose (2508 vs 480 mg, p = .007), and were more likely to have had a steroid taper (48% vs 24%, p = .003). Multivariable logistic regression showed no significant associations between clinical characteristics and the diagnosis of adrenal insufficiency.ConclusionsAmong PICU patients who received glucocorticoids, 2.3% were subsequently diagnosed with adrenal insufficiency. We identified potential risk factors for adrenal insufficiency after glucocorticoid use in the PICU, which warrant future study to better delineate and mitigate adrenal insufficiency's contribution to morbidity and mortality among critically ill children.
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