The epidemiology and long-term outcomes of acute kidney disease in a resource-limited setting

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Abstract
Background The concept of acute kidney disease (AKD) implies kidney damage that results in a significant decrease in glomerular filtration rate, including acute kidney injury (AKI), but that is not persistent enough to meet the criteria of chronic kidney disease (CKD). While a few studies have shown associations between AKD and the risk of adverse outcomes, there is still a lack of evidence from resource-limited settings. Methods All hospitalized patients at the study hospital during 2017 were retrospectively reviewed. Diagnosis of AKI, AKD, and CKD was based on the diagnostic algorithm proposed by KDIGO. Patients were followed up for 2 years to determine their risks of mortality, development of CKD, and progression of pre-existing CKD. Results A total of 9800 patients were included in the analysis, 26.1% of whom had pre-existing CKD, while AKD without AKI was found in 8% and 7% of individuals with and without pre-existing CKD, respectively. Patients with AKD without AKI were associated with higher in-hospital mortality than those without pre-existing CKD [adjusted hazard ratio (aHR) of 2.50; 95% CI 1.43, 4.37] and with pre-existing CKD (aHR 1.79; 95% CI 1.16, 2.76). The incidence of new CKD was higher in the group of AKD without AKI than in the AKI group (34.8 vs. 14.7%). Conclusion In a resource-limited setting, AKD is associated with short- and long-term mortality and CKD progression, especially in individuals with pre-existing CKD. Graphical abstract
Funding Information
  • The Second Century Fund (C2F) of Chulalongkorn University
  • The International Society of Nephrology
  • The Kidney Foundation of Thailand and The Medical Association of Thailand.

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