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. 2023 Apr 17:10:1153670.
doi: 10.3389/fmed.2023.1153670. eCollection 2023.

Risk factors and 180-day mortality of acute kidney disease in critically ill patients: A multi-institutional study

Heng-Chi Pan  1   2 , Hsing-Yu Chen  3   4   5 , Hui-Ming Chen  6 , Yu-Tung Huang  6 , Ji-Tseng Fang  1   7 , Yung-Chang Chen  1   7
Affiliations

Risk factors and 180-day mortality of acute kidney disease in critically ill patients: A multi-institutional study

Heng-Chi Pan et al. Front Med (Lausanne). .

Erratum in

Abstract

Background: Critically ill patients with acute kidney injury (AKI) have a poor prognosis. Recently, the Acute Disease Quality Initiative (ADQI) proposed to define acute kidney disease (AKD) as acute or subacute damage and/or loss of kidney function post AKI. We aimed to identify the risk factors for the occurrence of AKD and to determine the predictive value of AKD for 180-day mortality in critically ill patients.

Methods: We evaluated 11,045 AKI survivors and 5,178 AKD patients without AKI, who were admitted to the intensive care unit between 1 January 2001 and 31 May 2018, from the Chang Gung Research Database in Taiwan. The primary and secondary outcomes were the occurrence of AKD and 180-day mortality.

Results: The incidence rate of AKD among AKI patients who did not receive dialysis or died within 90 days was 34.4% (3,797 of 11,045 patients). Multivariable logistic regression analysis indicated that AKI severity, underlying early CKD, chronic liver disease, malignancy, and use of emergency hemodialysis were independent risk factors of AKD, while male gender, higher lactate levels, use of ECMO, and admission to surgical ICU were negatively correlated with AKD. 180-day mortality was highest among AKD patients without AKI during hospitalization (4.4%, 227 of 5,178 patients), followed by AKI with AKD (2.3%, 88 of 3,797 patients) and AKI without AKD (1.6%, 115 of 7,133 patients). AKI with AKD had a borderline significantly increased risk of 180-day mortality (aOR 1.34, 95% CI 1.00-1.78; p = 0.047), while patients with AKD but no preceding AKI episodes had the highest risk (aOR 2.25, 95% CI 1.71-2.97; p < 0.001).

Conclusion: The occurrence of AKD adds limited additional prognostic information for risk stratification of survivors among critically ill patients with AKI but could predict prognosis in survivors without prior AKI.

Keywords: acute kidney disease; acute kidney injury; chronic kidney disease; risk factor; survival.

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Conflict of interest statement

The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.

Figures

Figure 1
Figure 1
Flowchart showing the study protocol. (A) First cohort and (B) second cohort.
Figure 2
Figure 2
Assessment outcome among patients with different combinations of AKI and AKD.
Figure 3
Figure 3
Discrimination ability of models predicting the occurrence of 180-day mortality.
See this image and copyright information in PMC

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