Related Experiment Videos
Adrenal function in sepsis and septic shock
Cristiane Freitas Pizarro1, Eduardo Juan Troster
1Faculdade de Medicina, Universidade de São Paulo (USP), São Paulo, SP, Brazil. crispizarro@terra.com.br
Insights
Adrenal insufficiency is common in pediatric sepsis and septic shock, potentially causing refractory shock. The effectiveness of low-dose steroid therapy in these critically ill children requires further investigation.
Area of Science:
- Pediatric Critical Care Medicine
- Endocrinology
- Infectious Diseases
Background:
- Adrenal insufficiency is a recognized complication in pediatric patients experiencing severe sepsis and septic shock.
- This condition may contribute to the development of catecholamine-refractory shock, a severe and life-threatening complication.
Purpose of the Study:
- To review the diagnostic criteria for adrenal insufficiency in pediatric patients with severe sepsis and septic shock.
- To examine the current treatment strategies for this condition in the pediatric population.
Main Methods:
- A literature search was conducted using MEDLINE, Embase, and Cochrane Library databases.
- Keywords included "septic shock," "sepsis," "corticosteroids," "adrenal insufficiency," and "children."
Main Results:
- Diagnostic criteria for adrenal insufficiency in critically ill children are not well-established, leading to a wide incidence range (15%-61%).
- The rapid corticotropin stimulation test is commonly used, with ongoing debate regarding optimal corticotropin dosage (standard 250 microg vs. proposed sensitive 1 microg).
- The efficacy of low-dose corticosteroids in children with catecholamine-refractory shock remains uncertain, necessitating further research.
Conclusions:
- Adrenal insufficiency is prevalent in pediatric severe sepsis and septic shock and may be a factor in catecholamine-refractory shock.
- Further research is needed to clarify the impact of low-dose steroid replacement therapy on morbidity and mortality in these patients.
Objective:
To review diagnostic criteria and treatment of adrenal insufficiency in pediatric patients with severe sepsis and septic shock.
Sources:
Articles were selected using MEDLINE (1966-June 2007), Embase (1994-2007) and Cochrane Library (2000-2007) databases. following key words were utilized: septic shock, sepsis, corticosteroids, adrenal insufficiency and children.
Summary Of The Findings:
There are no well established and accepted criteria to define adrenal insufficiency in critically ill patients. Incidence of adrenal insufficiency varies according to different criteria, and it may range between low values of 15% and high values of 61%. The rapid corticotropin stimulation test is widely used as a method to identify adrenocortical hyporesponsiveness, but controversy exists as to the corticotropin dose to be used. The 250 microg dose is the standard dose. Low doses of corticotropin (1microg) have recently been proposed, suggesting that they may have higher sensitivity. There are still doubts as to the efficacy of low doses of corticosteroids in children with catecholamine-refractory shock. Further studies are needed to determine whether the treatment of these patients would change morbidity and/or mortality.
Conclusion:
Adrenal insufficiency is common in children with severe sepsis and septic shock and may contribute to the development of catecholamine-refractory shock. However, doubts still persist regarding the efficacy of replacement therapy with low-doses steroids.
Related Concept Videos
Hormones of the Adrenal Glands
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and corticosterone...
Adrenal Gland Disorders
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
Acute Inflammation III: Local and Systemic Effects
Anatomy of the Adrenal Glands
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct regions...
Cushing Syndrome II: Pathophysiology
Acute Kidney Injury II: Pathophysiology