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Updated: Oct 19, 2025

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A Novel Method: Super-selective Adrenal Venous Sampling
Published on: September 15, 2017
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Adrenocortical System Hormones in Non-Critically Ill COVID-19 Patients
I Ekinci1, M Hursitoglu2,3, M Tunc4
1University of Health Sciences, Istanbul Kanuni Sultan Suleyman Training and Research Hospital, Internal Medicine Dept.
Summary
The cortisol/ACTH ratio may better indicate adrenocortical system changes in COVID-19 patients than individual hormone levels. Further research is needed to confirm these findings in COVID-19 patients.
Area of Science:
- Endocrinology
- Infectious Diseases
- COVID-19 Research
Background:
- The impact of COVID-19 on the adrenocortical system remains largely unknown.
- Understanding these effects is crucial for comprehensive patient management.
Purpose of the Study:
- To investigate serum cortisol, adrenocorticotropic hormone (ACTH), and their ratio in hospitalized COVID-19 patients.
- To compare these hormonal markers between COVID-19 patients and healthy controls.
Main Methods:
- A prospective case-control study involving 74 COVID-19 patients and 33 healthy controls.
- Hormone levels (cortisol, ACTH) and their ratio were measured and compared.
- Sub-analyses were performed based on Glasgow Coma Score (GCS), CURB-65 score, and ICU admission.
Main Results:
- COVID-19 patients exhibited lower serum ACTH but higher serum cortisol and cortisol/ACTH ratio compared to healthy controls.
- The cortisol/ACTH ratio was significantly higher in COVID-19 patients with lower GCS and varying CURB-65 scores.
- Patients requiring ICU admission showed higher cortisol and cortisol/ACTH ratio, with lower ACTH levels.
Conclusions:
- The cortisol/ACTH ratio appears more informative than individual cortisol or ACTH levels for assessing adrenocortical function in COVID-19.
- Further extensive research is necessary to validate these preliminary findings.
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