Perioperative body weight change is associated with in-hospital mortality in cardiac surgical patients with postoperative acute kidney injury

Chih-Chung Shiao, Ya-Ting Huang, Tai-Shuan Lai, Tao-Min Huang, Jian-Jhong Wang, Chun-Te Huang, Pei-Chen Wu, Che-Hsiung Wu, I-Jung Tsai, Li-Jung Tseng, Chih-Hsien Wang, Tzong-Shinn Chu, Kwan-Dun Wu, Vin-Cent Wu and for the National Taiwan University Hospital Study Group on Acute Renal Failure (nsarf)

PLOS ONE, 2017, vol. 12, issue 11, 1-18

Abstract: Background: Postoperative acute kidney injury (AKI) is common following cardiac surgery (CS). Body weight (BW) may be an amenable variable by representing the summation of the nutritional and the fluid status. However, the predictive role of perioperative BW changes in CS patients with severe postoperative AKI is never explored. This study aimed to evaluate this association. Methods: This study was conducted using a prospectively collected multicenter cohort, NSARF (National Taiwan University Hospital Study Group on Acute Renal Failure) database. The adult CS patients with postoperative AKI requiring renal replacement therapy (RRT), who had clear initial consciousness, received CS within 14 days of hospitalization, and underwent RRT within seven days after CS in intensive care units from January 2001 to January 2014 were enrolled. With the endpoint of 30-day postoperative mortality, we evaluated the association between the clinical factors denoting fluid status and patients outcomes. Results: A total of 188 patients (70 female, mean age 63.7 ± 15.2 years) were enrolled. Comparing with the survivors (n = 124), the non-survivors (n = 64) had a significantly higher perioperative BW change [3.6 ± 6.1% versus 0.1 ± 8.3%, p = 0.003] but not the postoperative and pre-RRT BW changes. By using multivariate Cox proportional hazards model, the independent indicators of 30-day postoperative mortality included perioperative BW change (p = 0.026) and packed red blood cells transfusion (p = 0.007), postoperative intra-aortic balloon pump (p = 0.001) and central venous pressure level (p = 0.005), as well as heart rate (p = 0.022), sequential organ failure assessment score (p

Date: 2017
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Persistent link: https://EconPapers.repec.org/RePEc:plo:pone00:0187280

DOI: 10.1371/journal.pone.0187280

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