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BioMed Research International
Volume 2014, Article ID 172620, 10 pages
Research Article

Risk Factors for Mortality in Patients with Septic Acute Kidney Injury in Intensive Care Units in Beijing, China: A Multicenter Prospective Observational Study

1Department of Critical Care Medicine, Fu Xing Hospital, Capital Medical University, Beijing 100038, China
2Department of Surgical Intensive Care Units, Hepatobiliary Surgery and Liver Transplant Center, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
3Center for Infectious Diseases, Beijing YouAn Hospital, Capital Medical University, Beijing 100069, China
4Department of Critical Care Medicine, Hospital affiliated to Hebei United University, Tangshan 06300, China

Received 12 May 2014; Accepted 14 June 2014; Published 7 July 2014

Academic Editor: Mingyue Zheng

Copyright © 2014 Xin Wang et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Objective. To discover risk factors for mortality of patients with septic AKI in ICU via a multicenter study. Background. Septic AKI is a serious threat to patients in ICU, but there are a few clinical studies focusing on this. Methods. This was a prospective, observational, and multicenter study conducted in 30 ICUs of 28 major hospitals in Beijing. 3,107 patients were admitted consecutively, among which 361 patients were with septic AKI. Patient clinical data were recorded daily for 10 days after admission. Kidney Disease: Improving Global Outcomes (KDIGO) criteria were used to define and stage AKI. Of the involved patients, 201 survived and 160 died. Results. The rate of septic AKI was 11.6%. Twenty-one risk factors were found, and six independent risk factors were identified: age, APACHE II score, duration of mechanical ventilation, duration of MAP <65 mmHg, time until RRT started, and progressive KIDGO stage. Admission KDIGO stages were not associated with mortality, while worst KDIGO stages were. Only progressive KIDGO stage was an independent risk factor. Conclusions. Six independent risk factors for mortality for septic AKI were identified. Progressive KIDGO stage is better than admission or the worst KIDGO for prediction of mortality. This trial is registered with ChiCTR-ONC-11001875.