The sepsis-glucose intolerance riddle: a hormonal explanation

Area of Science:

• Endocrinology
• Metabolic Disorders
• Critical Care Medicine

Background:

• Glucose intolerance is a common complication in sepsis.
• It is often linked to various endocrine and metabolic dysfunctions.
• Understanding these metabolic changes is crucial for sepsis management.

Purpose of the Study:

• To investigate the prevalence and implications of glucose intolerance in sepsis patients.
• To correlate hormonal profiles with glucose tolerance in sepsis.
• To identify metabolic factors contributing to mortality in sepsis.

Main Methods:

• Intravenous glucose tolerance tests were performed on 19 patients (15 septic, 4 stress controls) between 1977-1978.
• Hormone levels (insulin, glucagon, growth hormone, cortisol, epinephrine) were measured.
• Glucose tolerance curves were analyzed and correlated with hormone levels and mortality.

Main Results:

• Glucose intolerance was present in less than 40% of septic patients.
• Septic patients with glucose intolerance had a 60% mortality rate, versus 10% for those with normal glucose tolerance.
• Sustained, unresponsive hyperglucagonemia and suppressed growth hormone correlated with glucose intolerance and high mortality.

Conclusions:

• Glucose intolerance in sepsis is a significant predictor of mortality.
• Hormonal imbalances, particularly hyperglucagonemia and growth hormone suppression, contribute to a decompensated metabolic state.
• These findings highlight a peripheral metabolic energy deficit in sepsis-induced mortality.