Objective To analyze the changes of serum amyloid A (SAA) ,C reactive protein (CRP) ,procalcitonin(PCT) and trypsin activated peptide(TAP) in the patients with acute pancreatitis (AP) ,and to evaluate the above 4 indexes combined detection in the diagnosis and treatment of AP .Methods The levels of SAA ,CRP ,PCT and TAP were detected in 21 cases of severe AP (SAP) and 49 cases of mild AP(MAP) .The detection results were compared with those in the healthy control group (n=50) .Re‐sults The levels of SAA ,CRP ,PCT and TAP had statistical differences between the patients with acute stage of SAP and MAP groups with the healthy control group(P<0 .01);the levels of SAA ,CRP ,PCT and TAP in the SPA group were significantly high‐er than those in the MAP group with statistical difference(P<0 .01) .The diagnostic efficiency of 4‐index combined detection was higher than that of single index detection .Conclusion The combined detection of SAA ,CRP ,PCT and TAP is conducive to early diagnosis and disease condition judgement of AP ,and has an important significance to the diagnosis and treatment of SAP .%目的：分析急性胰腺炎患者血清中淀粉样蛋白A（SAA）、C反应蛋白（CRP）、血清降钙素原（PCT）及胰蛋白酶原激活肽（T A P ）水平的变化，评价以上4项指标联合检测在急性胰腺炎诊治中的临床价值。方法70例急性胰腺炎患者中重症急性胰腺炎组（SAP组）21例，轻症急性胰腺炎组（MAP组）49例，分别检测急性期患者体内PCT、SAA、CRP及TAP水平，并与50例健康对照进行比较。结果 SAP组与MAP组急性发作期患者血清 PCT、SAA、CRP及尿 TAP水平均与健康对照组不同，差异有统计学意义（P＜0．01）；SAP组血清PCT、SAA、CRP及TAP水平均明显高于MAP组，差异有统计学意义（P＜0．01），4项指标联合检测效能高于单项指标检测。结论联合检测患者血清中SAA、CRP、PCT及 TAP水平的变化，有助于急性胰腺炎的早期诊断及病情判断，对SAP的诊治具有重要意义。
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