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Hormonal response to surgical stress in schoolchildren
J Castejón-Casado1, M Moreno-Prieto, J C Valladares-Mendías
1Department of Paediatric Surgery, Virgen de las Nieves University Hospital, Granada, Spain.
Insights
Pediatric surgical stress elevates adrenocorticotropic hormone (ACTH), cortisol, and beta-endorphin post-surgery. High stress and emergency procedures significantly impact these hormone levels, with beta-endorphin remaining elevated longer.
Area of Science:
- Pediatric Endocrinology
- Surgical Stress Response
- Hormonal Monitoring in Children
Background:
- Surgical procedures induce physiological stress responses in children.
- Hormonal changes, including ACTH, cortisol, and beta-endorphin, are key indicators of this stress.
- Understanding these hormonal dynamics is crucial for managing pediatric surgical patients.
Purpose of the Study:
- To quantify ACTH, cortisol, and beta-endorphin levels in children before and after surgery.
- To investigate correlations between hormonal fluctuations and surgical stress severity.
- To assess the impact of elective versus emergency surgery on these hormonal responses.
Main Methods:
- Prospective cohort study of 78 children (ages 6-13).
- Plasma hormone concentrations (ACTH, cortisol, beta-endorphin) measured preoperatively and at 1 and 24 hours postoperatively.
- Surgical stress categorized as low or high using the Oxford scale; statistical analysis included t-tests and Pearson's correlation.
Main Results:
- Hormone levels significantly increased one hour post-surgery.
- ACTH and cortisol normalized by 24 hours, while beta-endorphin remained elevated.
- High surgical stress correlated with increased cortisol (1 hr) and beta-endorphin (24 hrs).
- Emergency surgery patients exhibited higher baseline and postoperative ACTH and cortisol.
Conclusions:
- Pediatric surgical response involves elevated ACTH, cortisol, and beta-endorphin one hour post-op, with prolonged beta-endorphin increase.
- Cortisol serves as a reliable marker for surgical stress intensity.
- Emergency surgery is linked to significantly higher ACTH and cortisol levels.
Purpose:
To determine hormone concentrations (ACTH, cortisol, beta-endorphin) in children before and after surgery, to assess the correlation between any hormonal changes and to study the influence exercised on them by the severity of surgical stress and the elective/emergency nature of the surgery.
Patients And Methods:
Prospective cohort of 78 children (age= 10+/-2.6 years, range 6-13 years) undergoing elective or emergency surgery. Preoperative and postoperative (1 and 24 hours postoperation) plasma concentrations of ACTH, cortisol and beta-endorphin were determined in all children. The severity of surgical stress was evaluated as low (< 6) or high (> 6) according to the Oxford scale. Student's t-test was used to analyse hormonal changes and the influence of degree of surgical stress and elective/emergency character of the surgery, and Pearson's coefficient for correlations between hormonal values. p < 0.05 was regarded as significant.
Results:
We observed a significant increase in hormonal concentrations one hour after surgery. ACTH and cortisol values normalised 24 hours after surgery, but beta-endorphin concentrations remained increased. There was a correlation between ACTH and beta-endorphin values both before surgery and one hour after. Operations with high surgical stress significantly increased cortisol concentrations one hour after surgery and beta-endorphin concentrations 24 hours after surgery. Patients selected for emergency surgery showed significantly higher concentrations of cortisol and ACTH both before and after surgery.
Conclusions:
Postoperative hormonal response among children of school age is characterised by increases in ACTH, cortisol and beta-endorphin one hour after surgery, and by high concentrations of beta-endorphin 24 hours after surgery. Cortisol is an index of surgical stress. Emergency surgery is associated with significant increases in ACTH and cortisol.
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