Study of iron pathophysiology for early diagnosis of acute kidney injury secondary to ischemia reperfusion injury following cardiopulmonary bypass

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Date
2017
Authors
Choi, Nora
Journal Title
Journal ISSN
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Publisher
SAGE
Abstract
Currently, there are no successful therapies proven to ameliorate acute kidney injury (AKI). AKI secondary to ischemia reperfusion injury (IRI) leads to increased morbidity and mortality. The role of iron sequestration throughout cardiac surgery remains unclear, however it may be an important modifier of renal ischemia reperfusion injury. The primary goal was to characterize iron regulatory pathways in a prospective observational cohort of adult cardiac surgery patients in the context of clinical AKI predictors and in relation to clinical prediction alone. The secondary goal was to evaluate potential proteins that may act as non-invasive biomarkers for the early detection of AKI, including urine hepcidin-25, serum ferritin, serum transferrin saturation (TSAT) and urine lactotransferrin. We found that urine hepcidin-25 at postoperative day 1 and serum ferritin and TSAT at 1 hour into cardiopulmonary bypass were independent predictors of AKI avoidance on multivariate analysis, enhancing clinical prediction alone.
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Keywords
Acute kidney injury
Citation
Choi N., Rigatto C., Zappitelli M.,… Ho J. (2017) Urinary Hepcidin-25 Is Elevated in Patients that Avoid Acute Kidney Injury Following Cardiac Surgery. Can J Kid Health Dis. Accepted 4 Aug 2017.