Related Experiment Videos
General anesthesia for surgery influences melatonin and cortisol levels
Edward Ram1, Tali H Vishne, Talia Weinstein
1Department of General Surgery, Nazareth Hospital EMMS, Nazareth, Israel. edwardram@nazhosp.com
World Journal of Surgery
|June 14, 2005
Summary
General anesthesia and surgery impact melatonin and cortisol levels. Post-surgery, melatonin and cortisol show an inverse correlation, with melatonin increasing and cortisol initially rising then decreasing.
Area of Science:
- Endocrinology
- Anesthesiology
- Surgical Science
Background:
- Melatonin and cortisol are key hormones affected by physiological stress.
- Understanding their interplay during and after surgery is crucial for patient recovery.
Purpose of the Study:
- To investigate the impact of general anesthesia and surgery on melatonin production.
- To assess the relationship between melatonin secretion and cortisol levels post-surgery.
Main Methods:
- Prospective study involving 20 patients undergoing laparoscopic procedures.
- Measurement of serum cortisol and urinary melatonin metabolites at various time points: pre-surgery, during surgery, and post-surgery.
Main Results:
- Melatonin levels decreased on the night of surgery but significantly increased the night after.
- Cortisol levels (both day and night) significantly increased during surgery and decreased the morning after, remaining below pre-operative levels.
- An inverse correlation was observed between melatonin and cortisol levels after surgery.
Conclusions:
- General anesthesia and surgery significantly alter melatonin and cortisol profiles.
- A notable inverse relationship exists between melatonin and cortisol levels in the post-operative period.