Adrenal Insufficiency in Patients with COVID-19
SARS-CoV-2, which emerged in China and spread globally, has been associated with adrenal insufficiency in numerous COVID-19 patients. The clinical evidence regarding adrenal involvement in COVID-19 patients is currently limited, primarily consisting of case reports and small patient series.
This study aimed to assess the variations in serum cortisol levels and evaluate the response of hospitalized COVID-19 patients to the adrenocorticotropic hormone (ACTH) test.
This study was performed on patients with COVID-19 admitted to Valiasr Hospital, Birjand, Iran, in 2021. Sixty patients with COVID-19 were included in this study by simple random sampling. Patients' venous blood (5 mL) was collected in an EDTA anticoagulant tube. Blood samples were placed in a cool place, then 250 μg intramuscular cosyntropin was injected, and blood samples were taken again 60 minutes later. According to the kit protocol, cortisol levels were measured by a quantitative luminescence kit (Saluggia, Italy).
The study involved 60 participants, of which 32 were male (53.3%) and 28 were female (46.7%). The Mean participants' age was 63.1 ± 20.93. The median baseline cortisol serum levels were 28.075 µg /dL for men and 21.820 µg /dL for women. There was no significant difference between base cortisol serum levels (P-value = 0.248). After measuring the baseline cortisol levels in the studied patients, 21.7 % suffered from adrenal Insufficiency, 40 % were suspected of adrenal insufficiency and required cosyntropin injections, and 38.3 % did not have adrenal Insufficiency. Following the administration of cosyntropin injections, it was found that 33.3% of participants had adrenal insufficiency, while the remaining 66.7% did not exhibit any signs of adrenal insufficiency. Vital signs demonstrated that patients with adrenal insufficiency had notably lower mean systolic and diastolic blood pressures, and a statistically significant correlation was observed when comparing these two groups (P-value < 0.001 and P-value = 0.001, respectively). In assessing sodium and potassium serum levels between the two groups, individuals with adrenal insufficiency demonstrated lower average sodium levels (P-value < 0.001). At the same time, no noteworthy divergence was found in potassium levels between the groups (P-value = 0.587).Furthermore, no considerable discrepancy emerged in the in-hospital mortality rate during the patients' follow-up period (P-value = 0.322).
As Adrenal insufficiency is life-threatening, early adrenal axis testing for COVID-19 patients with clinical suspicion of adrenal insufficiency should be carried out.
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