Laboratory Medicine ›› 2025, Vol. 40 ›› Issue (12): 1153-1158.DOI: 10.3969/j.issn.1673-8640.2025.12.003

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Roles of PIV,SII and NPAR in the diagnosis of spontaneous bacterial peritonitis in patients with liver cirrhosis and ascites

WANG Tian1, ZHANG Yun1, BAI Yi1, ZHAI Weibin2, ZHAO Hai1()   

  1. 1. Department of Clinical Laboratory,Shaanxi Provincial People's Hospital,Xi'an 710000,Shaanxi,China
    2. Department of Information,Shaanxi Provincial People's Hospital,Xi'an 710000,Shaanxi,China
  • Received:2024-09-10 Revised:2025-05-01 Online:2025-12-30 Published:2025-12-26
  • Contact: ZHAO Hai

Abstract:

Objective To investigate the diagnostic roles of inflammatory-related indicators such as pan-immune inflammation value(PIV),systemic immune-inflammation index(SII) and neutrophil percentage-to-albumin ratio(NPAR) for spontaneous bacterial peritonitis(SBP) in patients with liver cirrhosis and ascites. Methods A total of 443 patients with liver cirrhosis and ascites from Shaanxi Provincial People's Hospital from January 2019 to December 2023 were enrolled. The clinical data of all the patients at admission were collected,and blood routine test,C-reactive protein(CRP),albumin(Alb),total bilirubin(TB),creatinine(Cr),alanine aminotransferase(ALT) and aspartate aminotransferase(AST) were performed and determined. The neutrophil-to-lymphocyte ratio(NLR),lymphocyte-to-monocyte ratio(LMR),PIV,SII and NPAR were calculated. The patients were classified into SBP group(50 cases) and non-SBP group(393 cases) based on whether SBP occurred during hospitalization. Binary Logistic regression analysis was used to evaluate the influencing factors of SBP occurrence. Receiver operating characteristic(ROC) curve was used to evaluate the efficacy of each indicator in diagnosing SBP. Results There was statistical significance in the occurrence of hepatic encephalopathy,liver-kidney syndrome and liver failure between SBP group and non-SBP group(P<0.05),while there was no statistical significance in the other clinical data between the 2 groups(P>0.05). There was statistical significance in white blood cell(WBC) count,the absolute value of neutrophils(NEUT#),the percentage of neutrophils(NEUT%),the percentage of lymphocytes(LYMPH%),the percentage of monocytes(MO#),CRP,Alb,TB,NLR,LMR,SII,PIV and NPAR between SBP group and non-SBP group(P<0.05),while there was no statistical significance in the other indicators between the 2 groups(P>0.05). Hepatic encephalopathy and elevated TB were independent risk factors for SBP in patients with liver cirrhosis and ascites(P<0.05). The areas under curves(AUC) for PIV,SII,LMR,NLR,LYMPH%,NPAR,CRP,NEUT% and TB in diagnosing SBP in patients with liver cirrhosis and ascites were 0.820,0.804,0.736,0.734,0.720,0.712,0.711,0.692 and 0.603,respectively. Conclusions PIV,SII and NPAR have certain auxiliary diagnostic value for the occurrence of SBP in patients with cirrhotic ascites.

Key words: Pan-immune inflammation value, Systemic immune-inflammatory index, Neutrophil percentage-to-albumin ratio, Liver cirrhosis, Ascites, Spontaneous bacterial peritonitis

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