ABSTRACT
Objective To evaluate the value of serum procalcitonin (PCT ) in the diagnosis of liver cirrhosis complicating sponta‐neous bacterial peritonitis (SBP) .Methods The patients with cirrhosis were divided into non‐SBP group and complicating SBP group according to whether complicating SBP ,and the patients with common hepatitis served as the control group .Serum expres‐sion levels of PCT ,CRP and IL‐6 were detected by electrocheniluminescence and Immunoturbidimetry methods .The receiver operat‐ing characteristic curve (ROC) curve was drawn for evaluating the diagnostic efficiency of each indicator .Results The levels of ser‐um PCT ,CRP and IL‐6 in the complicating SBP group were significantly higher than those in the non‐SBP group and control group , the differences were statistically significant (P<0 .01);The ROC curve analysis showed that the diagnostic value of PCT at the op‐timum threshold value of 0 .51 ng/mL for diagnosing cirrhosis complicating SBP was superior to CRP and IL‐6 ,the sensitivity of se‐rum PCT for diagnosing SBP in 3 groups was 62 .68% ,the specificity was 76 .59% and the accuracy was 80 .01% .Conclusion The serum PCT level has an important value for the early diagnosis of liver cirrhosis complicating SBP .