Endocrine interventions in the intensive care unit

Area of Science:

• Endocrinology
• Critical Care Medicine
• Neuroscience

Background:

• Life-threatening illnesses trigger neuroendocrine axis changes, aiding survival by shifting metabolism and optimizing functions.
• These acute stress responses resemble fasting and are evolutionarily conserved.
• Prolonged critical illness can lead to suppressed hypothalamic-pituitary-peripheral axes, potentially impeding recovery and increasing long-term risks.

Purpose of the Study:

• To review the role of neuroendocrine axes in critical illness.
• To evaluate the impact of hormonal treatments on patient outcomes.
• To identify the need for further research into hypothalamic-releasing hormones in prolonged critical illness.

Main Methods:

• Review of existing literature on neuroendocrine responses in critical illness.
• Analysis of outcomes from randomized controlled trials (RCTs) investigating peripheral hormone treatments.
• Examination of small studies on hypothalamic-releasing hormone infusions in prolonged critical illness.

Main Results:

• Acute critical illness involves adaptive hormonal changes beneficial for survival.
• Treatment with peripheral hormones has not shown robust benefits in critically ill patients.
• Small studies suggest potential benefits of hypothalamic-releasing hormones in prolonged critical illness.

Conclusions:

• Neuroendocrine axis suppression in prolonged critical illness may negatively impact recovery.
• Current evidence on peripheral hormone therapy lacks robust benefit.
• Well-designed RCTs are needed to confirm the efficacy of hypothalamic-releasing hormones in improving patient-centered outcomes.