Adrenal functions in patients with sepsis

Area of Science:

• Endocrinology
• Critical Care Medicine
• Infectious Diseases

Background:

• Sepsis is a life-threatening organ dysfunction caused by a dysregulated host response to infection.
• Cortisol plays a crucial role in the stress response, and its levels can be altered in critical illnesses like sepsis.
• Adrenocortical function in sepsis is complex and requires further investigation.

Purpose of the Study:

• To compare basal cortisol levels and ACTH-stimulated cortisol response in patients with sepsis versus healthy controls.
• To investigate the correlation between cortisol levels and patient outcomes, including mortality.
• To determine the incidence of adrenocortical insufficiency in sepsis.

Main Methods:

• A comparative study involving 49 patients with sepsis and 30 healthy controls.
• Measurement of basal serum cortisol levels.
• Assessment of cortisol response following ACTH stimulation test.

Main Results:

• Patients with sepsis had significantly higher mean basal cortisol levels compared to controls (p < 0.05).
• Higher basal cortisol levels were associated with increased mortality (p < 0.05).
• The cortisol response to ACTH stimulation was significantly blunted in sepsis patients (p < 0.001), with no significant difference between survivors and non-survivors.
• Adrenocortical insufficiency was diagnosed in 16.3% of sepsis patients, with a higher mortality rate in this subgroup.

Conclusions:

• Sepsis is characterized by elevated basal cortisol levels, which may serve as a poor prognostic marker.
• A blunted cortisol response to ACTH stimulation is common in sepsis, suggesting impaired adrenal reserve.
• A subset of sepsis patients experiences adrenocortical insufficiency, highlighting the need for monitoring adrenal function.