[Effect of anesthesia and operation on essential immune functions]

Area of Science:

• Immunology
• Anesthesiology

Context:

• Anesthetics are widely used in clinical practice.
• Immune function is crucial for patient outcomes.

Purpose:

• To review the effects of anesthetics on immune functions.
• To differentiate between short-term and long-term sedation impacts.

Summary:

• Short-term anesthesia generally has reversible, clinically insignificant effects on immune functions.
• Long-term, high-dose sedation (e.g., with thiobarbiturates, diazepam) can suppress both specific and unspecific immune mechanisms.
• Clinical evidence suggests a link between thiopental and increased pneumonia incidence in trauma patients.
• Surgical trauma and stress response also significantly alter immune status, potentially increasing infection risk.

Impact:

• Understanding these effects is vital for managing critically ill patients.
• Further research is needed to determine the clinical significance of these immune modulations on patient prognosis.
• Highlights the importance of pre-operative immune status and surgical stress in post-operative infectious complications.