Hypoferremia is associated with increased hospitalization and oxygen demand in COVID-19 patients

• Verfasst von: Wenz, Theresa [VerfasserIn]
• Verfasst von: Altamura, Sandro [VerfasserIn]
• Verfasst von: Muckenthaler, Martina [VerfasserIn]
• Verfasst von: Merle, Uta [VerfasserIn]
• Titel: Hypoferremia is associated with increased hospitalization and oxygen demand in COVID-19 patients
• Verf.angabe: Theresa Hippchen, Sandro Altamura, Martina U. Muckenthaler, Uta Merle
• E-Jahr: 2020
• Jahr: 10 November 2020
• Umfang: 9 S.
• Illustrationen: Diagramme
• Fussnoten: Gesehen am 03.12.2024
• Titel Quelle: Enthalten in: HemaSphere
• Ort Quelle: Hoboken : John Wiley & Sons Ltd., 2017
• Jahr Quelle: 2020
• Band/Heft Quelle: 4(2020), 6 vom: Dez., Artikel-ID e492, Seite 1-9
• ISSN Quelle: 2572-9241
• DOI: doi:10.1097/HS9.0000000000000492
• Datenträger: Online-Ressource
• Sprache: eng
• K10plus-PPN: 1910673692

Abstract

Iron metabolism might play a crucial role in cytokine release syndrome in COVID-19 patients. Therefore, we assessed iron metabolism markers in COVID-19 patients for their ability to predict disease severity. COVID-19 patients referred to the Heidelberg University Hospital were retrospectively analyzed. Patients were divided into outpatients (cohort A, n = 204), inpatients (cohort B, n = 81), and outpatients later admitted to hospital because of health deterioration (cohort C, n = 23). Iron metabolism parameters were severely altered in patients of cohort B and C compared to cohort A. In multivariate regression analysis including age, gender, CRP and iron-related parameters only serum iron and ferritin were significantly associated with hospitalization. ROC analysis revealed an AUC for serum iron of 0.894 and an iron concentration <6 μmol/l as the best cutoff-point predicting hospitalization with a sensitivity of 94.7% and a specificity of 67.9%. When stratifying inpatients in a low- and high oxygen demand group serum iron levels differed significantly between these two groups and showed a high negative correlation with the inflammatory parameters IL-6, procalcitonin, and CRP. Unexpectedly, serum iron levels poorly correlate with hepcidin. We conclude that measurement of serum iron can help predicting the severity of COVID-19. The differences in serum iron availability observed between the low and high oxygen demand group suggest that disturbed iron metabolism likely plays a causal role in the pathophysiology leading to lung injury.