Related Experiment Video
Updated: Apr 19, 2026

Assessing Changes in Volatile General Anesthetic Sensitivity of Mice after Local or Systemic Pharmacological Intervention
Published on: October 16, 2013
Stress indicators during general anesthesia with opioid analgesics in children
Biljana Draskovic1, Danica Stanic, Anna Uram-Benka
1University of Novi Sad, Serbia.
Insights
Remifentanil effectively suppresses the surgical stress response in young boys undergoing common procedures. This opioid analgesic demonstrated superior efficacy compared to fentanyl and alfentanil with fewer side effects.
Area of Science:
- Pediatric Anesthesiology
- Surgical Stress Response
- Pharmacology
Background:
- Opioid analgesics are commonly used to manage pain and stress during pediatric surgery.
- Different opioids may have varying effects on the physiological stress response.
- Optimizing analgesic choice is crucial for minimizing adverse outcomes in children.
Purpose of the Study:
- To compare the effectiveness of fentanyl, alfentanil, and remifentanil in blocking the surgical stress response in young boys.
- To identify the opioid analgesic associated with the fewest side effects during day case surgery.
Main Methods:
- Prospective, observational clinical study involving 150 boys aged 2-5 years.
- Intravenous anesthesia with propofol, rocuronium, and opioids (fentanyl, alfentanil, or remifentanil).
- Monitoring of stress markers including blood glucose, cortisone, and leptin levels.
Main Results:
- Remifentanil group showed the lowest increase in cortisone levels.
- Fentanyl group exhibited the highest blood glucose and cortisone levels.
- Significant decrease in leptin was observed in the fentanyl and remifentanil groups at different time points.
Conclusions:
- Remifentanil provides the most potent suppression of the surgical stress response in children.
- The choice of opioid analgesic can significantly influence the physiological stress response to surgery.
Background/Aim:
To determine which of the applied opioid analgesics brings the most powerful blockade of the stress response with the fewest side effects in children.
Materials And Methods:
This was a prospective, observational clinical study. The study included 150 boys, aged 2-5 years, ASA I, who underwent herniectomy or orchidopexy in day case surgery. The introduction and maintenance of anesthesia was intravenous (propofol, rocuronium, and opioids); airway was maintained by laryngeal mask and ventilation by mixture of oxygen/air. Subjects were divided into 3 groups depending on the applied opioid analgesics (fentanyl, alfentanil, remifentanil).
Results:
The fentanyl group had the highest blood glucose values (AS = 5.14; SD = 0.47) and the highest increase in cortisone level at the moment of incision and at awakening (AS = 536.09; SD = 198.56). The lowest increase in cortisone was recorded in the remifentanil group. A significant decrease in leptin was registered at awakening in the fentanyl group and at the moment of incision in the remifentanil group (P= 0.939).
Conclusion:
Remifentanil is the opioid analgesic with the highest suppressing effect on the stress response to surgical intervention in children.
More Related Videos
06:04Objective Nociceptive Assessment in Ventilated ICU Patients: A Feasibility Study Using Pupillometry and the Nociceptive Flexion Reflex
Published on: July 4, 2018
14:52Recording Brain Electromagnetic Activity During the Administration of the Gaseous Anesthetic Agents Xenon and Nitrous Oxide in Healthy Volunteers
Published on: January 13, 2018
Related Concept Videos
Parenteral Anesthetics: Overview
Stages of General Anesthesia
General Anesthesia: Overview
General anesthesia induces unconsciousness in the whole body, while the others target specific areas or sensations. It is administered to minimize adverse effects, maintain...
Opioid Analgesics: Synthetic and Semisynthetic Opioids
Inhalational Anesthetics: Overview
Analgesia and Pain Management