• Blood purification · Jan 2017

    Observational Study

    Relationship among Mortality of Patients with Acute Kidney Injury after Cardiac Surgery, Fluid Balance and Ultrafiltration of Renal Replacement Therapy: An Observational Study.

    • Buyun Wu, Jian Sun, Si Liu, Xiangbao Yu, Yamei Zhu, Huijuan Mao, and Changying Xing.
    • Department of Nephrology, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.
    • Blood Purif. 2017 Jan 1; 44 (1): 32-39.

    Background/AimsThe study aimed to investigate the relationship among mortality of patients with cardiac surgery-associated acute kidney injury (CSA-AKI), fluid balance, and ultrafiltration of renal replacement therapy (RRT).MethodsFrom January 2009 to October 2015, hospitalized patients with CSA-AKI receiving continuous or prolonged intermittent RRT were screened. The effects of fluid balance and ultrafiltration of RRT on clinical outcome were analyzed.ResultsThe 30-day mortality of all the 63 patients in the study was 58.6%. Compared with the death group, the survival group had a significantly lower fluid balance, larger ultrafiltration volume, and similar ultrafiltration rate during the first 3 days of RRT. Multivariate Cox regression analysis revealed that positive fluid balance during the first day of RRT, cardiac function of grade IV, and higher Sequential Organ Failure Assessment score were independent risk factors of 30-day mortality.ConclusionFluid balance was more relevant to short-term prognosis of CSA-AKI-RRT patients than ultrafiltration volume or ultrafiltration rate.© 2017 S. Karger AG, Basel.

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