Reduction in cortisol inactivation is part of the adrenal stress response to cardiac and noncardiac pediatric surgery: a prospective study using gas chromatography-mass spectrometry analysis
We examined the hypothesis that major cardiac surgery triggers a more intense adrenal stress response than less intensive noncardiac surgery, which then alters cortisol inactivation. Urinary excretion rates of glucocorticoid metabolites were determined before and after surgery using gas chromatograp...
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Published in | Hormone and metabolic research Vol. 46; no. 10; p. 677 |
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Main Authors | , , , , , , , |
Format | Journal Article |
Language | English |
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01.09.2014
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Abstract | We examined the hypothesis that major cardiac surgery triggers a more intense adrenal stress response than less intensive noncardiac surgery, which then alters cortisol inactivation. Urinary excretion rates of glucocorticoid metabolites were determined before and after surgery using gas chromatography-mass spectrometry in 29 children undergoing scheduled major cardiac surgery and 17 control children undergoing conventional noncardiac surgery in a prospective observational study. Excretion rates of glucocorticoid metabolites were summed and corrected for creatinine excretion to calculate cortisol production rates (mg/mmol creatinine/m(2) body surface area). Precursor/product ratios from individual metabolites were calculated to characterize cortisol inactivation (11β-hydroxysteroid dehydrogenase). Postoperatively, median cortisol production rates increased in both groups (
from 2.7 to 9.3; controls: from 2.7 to 5.8; p<0.001) with no significant difference between groups (p=0.12). Ratios of cortisol to cortisone metabolites, indicating the overall activity of 11β-hydroxysteroid dehydrogenase, increased postoperatively in both groups (p<0.001). In conclusion, surgery resulted in a distinct postoperative increase in cortisol production. In contrast to our hypothesis, children undergoing major cardiac surgery did not show an increased adrenal stress response compared to children undergoing conventional surgery. Furthermore, the reduction in cortisol inactivation appears to be an essential part of the stress response to pediatric surgery in general. |
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AbstractList | We examined the hypothesis that major cardiac surgery triggers a more intense adrenal stress response than less intensive noncardiac surgery, which then alters cortisol inactivation. Urinary excretion rates of glucocorticoid metabolites were determined before and after surgery using gas chromatography-mass spectrometry in 29 children undergoing scheduled major cardiac surgery and 17 control children undergoing conventional noncardiac surgery in a prospective observational study. Excretion rates of glucocorticoid metabolites were summed and corrected for creatinine excretion to calculate cortisol production rates (mg/mmol creatinine/m(2) body surface area). Precursor/product ratios from individual metabolites were calculated to characterize cortisol inactivation (11β-hydroxysteroid dehydrogenase). Postoperatively, median cortisol production rates increased in both groups (
from 2.7 to 9.3; controls: from 2.7 to 5.8; p<0.001) with no significant difference between groups (p=0.12). Ratios of cortisol to cortisone metabolites, indicating the overall activity of 11β-hydroxysteroid dehydrogenase, increased postoperatively in both groups (p<0.001). In conclusion, surgery resulted in a distinct postoperative increase in cortisol production. In contrast to our hypothesis, children undergoing major cardiac surgery did not show an increased adrenal stress response compared to children undergoing conventional surgery. Furthermore, the reduction in cortisol inactivation appears to be an essential part of the stress response to pediatric surgery in general. |
Author | Bödeker, R-H Steckel, H Neuhaeuser, C d'Uscio, C H Frey, B M Heckmann, M Thul, J Schranz, D |
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SubjectTerms | 11-beta-Hydroxysteroid Dehydrogenases - metabolism Adrenal Glands - metabolism Cardiac Surgical Procedures - methods Child Child, Preschool Cortisone - urine Down-Regulation Female Gas Chromatography-Mass Spectrometry Glucocorticoids - blood Glucocorticoids - urine Heart Diseases - congenital Heart Diseases - surgery Heart Diseases - urine Humans Hydrocortisone - urine Infant Male Prospective Studies |
Title | Reduction in cortisol inactivation is part of the adrenal stress response to cardiac and noncardiac pediatric surgery: a prospective study using gas chromatography-mass spectrometry analysis |
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