Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy

Background Because of high cost of continuous renal replacement therapy (CRRT) and the high mortality rate among severe acute kidney injury patients, careful identification of patients who will benefit from CRRT is warranted. This study determined factors associated with mortality among critically i...

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Main Authors: Kristianne Rachel P. Medina-Liabres, Jong Cheol Jeong, Hyung Jung Oh, Jung Nam An, Jung Pyo Lee, Dong Ki Kim, Dong-Ryeol Ryu, Sejoong Kim
Format: Article
Language:English
Published: The Korean Society of Nephrology 2021-09-01
Series:Kidney Research and Clinical Practice
Subjects:
Online Access:http://www.krcp-ksn.org/upload/pdf/j-krcp-20-205.pdf
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author Kristianne Rachel P. Medina-Liabres
Jong Cheol Jeong
Hyung Jung Oh
Jung Nam An
Jung Pyo Lee
Dong Ki Kim
Dong-Ryeol Ryu
Sejoong Kim
author_facet Kristianne Rachel P. Medina-Liabres
Jong Cheol Jeong
Hyung Jung Oh
Jung Nam An
Jung Pyo Lee
Dong Ki Kim
Dong-Ryeol Ryu
Sejoong Kim
author_sort Kristianne Rachel P. Medina-Liabres
collection DOAJ
description Background Because of high cost of continuous renal replacement therapy (CRRT) and the high mortality rate among severe acute kidney injury patients, careful identification of patients who will benefit from CRRT is warranted. This study determined factors associated with mortality among critically ill patients requiring CRRT. Methods This was a retrospective observational study of 414 patients admitted to the intensive care unit of four hospitals in South Korea who received CRRT from June 2017 to September 2018. Patients were divided according to degree of fluid overload (FO) and disease severity. The Cox proportional hazards model was used to explore the effect of relevant variables on mortality. Results In-hospital mortality rate was 57.2%. Ninety-day mortality rate was 58.5%. Lower creatinine and blood pH were significant predictors of mortality. A one-unit increase in the Sequential Organ Failure Assessment (SOFA) score was associated with increased risk of and 90-day mortality (hazard ratio [HR], 1.07; p < 0.001). The risk of 90-day mortality in FO patients was 57.2% (p < 0.001) higher than in those without FO. High SOFA score was associated with increased risk for 90-day mortality (HR, 1.79; p = 0.03 and HR, 3.05; p = 0.001) in patients without FO and with FO ≤ 10%, respectively. The highest mortality rates were in patients with FO > 10%, independent of disease severity. Conclusion FO increases the risk of mortality independent of other factors, including severity of acute illness. Prevention of FO should be a priority, especially when managing the critically ill.
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spelling doaj.art-d07fb293399a43ef9847013aade85b792022-12-21T22:28:48ZengThe Korean Society of NephrologyKidney Research and Clinical Practice2211-91322211-91402021-09-0140340141010.23876/j.krcp.20.2056053Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapyKristianne Rachel P. Medina-Liabres0Jong Cheol Jeong1Hyung Jung Oh2Jung Nam An3Jung Pyo Lee4Dong Ki Kim5Dong-Ryeol Ryu6Sejoong Kim7 Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea Department of Internal Medicine, Seoul National University Bundang Hospital, Seongnam, Republic of Korea Ewha Institute of Convergence Medicine, Ewha Womans University Mokdong Hospital, Seoul, Republic of Korea Department of Internal Medicine, Hallym University Sacred Heart Hospital, Anyang, Republic of Korea Department of Internal Medicine, Seoul National University Boramae Medical Center, Seoul, Republic of Korea Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of Korea Department of Internal Medicine, Ewha Womans University, Seoul, Republic of Korea Department of Internal Medicine, Seoul National University College of Medicine, Seoul, Republic of KoreaBackground Because of high cost of continuous renal replacement therapy (CRRT) and the high mortality rate among severe acute kidney injury patients, careful identification of patients who will benefit from CRRT is warranted. This study determined factors associated with mortality among critically ill patients requiring CRRT. Methods This was a retrospective observational study of 414 patients admitted to the intensive care unit of four hospitals in South Korea who received CRRT from June 2017 to September 2018. Patients were divided according to degree of fluid overload (FO) and disease severity. The Cox proportional hazards model was used to explore the effect of relevant variables on mortality. Results In-hospital mortality rate was 57.2%. Ninety-day mortality rate was 58.5%. Lower creatinine and blood pH were significant predictors of mortality. A one-unit increase in the Sequential Organ Failure Assessment (SOFA) score was associated with increased risk of and 90-day mortality (hazard ratio [HR], 1.07; p < 0.001). The risk of 90-day mortality in FO patients was 57.2% (p < 0.001) higher than in those without FO. High SOFA score was associated with increased risk for 90-day mortality (HR, 1.79; p = 0.03 and HR, 3.05; p = 0.001) in patients without FO and with FO ≤ 10%, respectively. The highest mortality rates were in patients with FO > 10%, independent of disease severity. Conclusion FO increases the risk of mortality independent of other factors, including severity of acute illness. Prevention of FO should be a priority, especially when managing the critically ill.http://www.krcp-ksn.org/upload/pdf/j-krcp-20-205.pdfacute kidney injurycontinuous renal replacement therapycritical illnessmortality
spellingShingle Kristianne Rachel P. Medina-Liabres
Jong Cheol Jeong
Hyung Jung Oh
Jung Nam An
Jung Pyo Lee
Dong Ki Kim
Dong-Ryeol Ryu
Sejoong Kim
Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
Kidney Research and Clinical Practice
acute kidney injury
continuous renal replacement therapy
critical illness
mortality
title Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
title_full Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
title_fullStr Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
title_full_unstemmed Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
title_short Mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
title_sort mortality predictors in critically ill patients with acute kidney injury requiring continuous renal replacement therapy
topic acute kidney injury
continuous renal replacement therapy
critical illness
mortality
url http://www.krcp-ksn.org/upload/pdf/j-krcp-20-205.pdf
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