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Chinese Journal of Hygiene Rescue(Electronic Edition) ›› 2020, Vol. 06 ›› Issue (04): 202-208. doi: 10.3877/cma.j.issn.2095-9133.2020.04.002

Special Issue:

• Original Article • Previous Articles     Next Articles

Predictive effect of neutrophil gelatinase-associated apolipoprotein (NGAL) on prognosis in patients with sepsis/septic shock

Jisong Zhang1, Yuming Wang1, Yanjun Zheng1, Xing Qi1, Peili Chen1, Wen Shi1, Ying Chen1, Zhitao Yang1, Enqiang Mao1, Erzhen Chen1,()   

  1. 1. Department of Emergency, Ruijin Hospital affiliated to Shanghai Jiaotong University School of Medicine, Shanghai, 200025, China
  • Received:2020-06-28 Online:2020-08-18 Published:2020-08-18
  • Contact: Erzhen Chen
  • About author:
    Corresponding author: Chen Erzhen, Email:

Abstract:

Objective

To investigate the predictive effect of neutrophil gelatinase-associated apolipoprotein (NGAL) on prognosis in patients with sepsis and septic shock.

Methods

In this study, 84 patients who were admitted to the emergency department of Ruijin Hospital from January 31, 2017 to January 31, 2019 and were clearly diagnosed with sepsis/septic shock were selected as the research subjects to conduct retrospective case analysis, including 53 males , 31 females, aged 18 to 80 years, with average age (56.5ubjects to conduct retrospective case analysis, including 53 males , 31 femaleere divided into the survival group (n=62) and the death group (n=22). The plasma NGAL levels were measured on the first day, the third day, and the seventh day of the patient’s admission, and the clinical results of the two groups were compared. Differences in data and laboratory examination index levels were screened out for comparison of observation indexes with statistical significance, and Pearson correlation analysis was used to compare the correlation between NGAL and other prognostic indexes. The receiver operating characteristic curve (ROC) curve was then used to determine the predictive value of NGAL for the occurrence of in-hospital death in patients with sepsis/septic shock and whether continuous renal replacement therapy (CRRT) was required.

Results

The NGAL concentration of patients in the death group was [(2 188.4±2 280.8) ng/mL vs.(538.2±777.4)ng/mL] on day 1 and [(2 045.5±2 388.8)ng/mL vs.(553.8±836.4)ng/mL] and the 7th day [(1 512.4±1 840.9)ng/mL vs.(192.3±410.2)ng/mL] were significantly higher than those in the survival group, and the differences were statistically significant (P<0.05). The patientr than those in thsequential organ failure assessment (SOFA) (r=0.4601), acute physiology and chronic health evaluation (APACHE Ⅱ) (r=0.37), lactic acid (r=0.41) and creatinine (r=0.48) had a strong positive correlation (P<0.05). The prognostic value of NGAL level on day 7 [area under the curve (AUROC)=0.85, 95% CI: 0.70-0.99] was higher than that on day 1 (AUROC=0.71, 95% CI: 0.55-0.88) and the third day (AUROC=0.72, 95%CI: 0.55-0.88). The predictive value of creatinine and NGAL on day 3 for CRRT was better than that on day 1 and day 7. Compared with the creatinine level (AUROC=0.83, 95%CI: 0.68-0.97) of NGAL concentration (AUROC=0.80, 95%CI: 0.64-0.97) on the third day of admission, the former had a predictive effect on whether patients need CRRT with better specificity, but relatively low sensitivity.

Conclusion

The NGAL concentration on day 7 has a high predictive value for prognosis. Compared with creatinine, NGAL is more specific in predicting whether patients need CRRT.

Key words: Neutrophil gelatinase-associated apolipoprotein (NGAL), Sepsis, Septic shock, Biomarker, Prognosis

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