CD14+单核细胞人白细胞DR抗原在脓毒症早期检测中的临床意义

目的 探讨脓毒症早期免疫抑制状态的监测方法及与预后的关系.方法 36例脓毒症患者入住重症监护室(ICU)当日,采用流式细胞仪检测其CD14+单核细胞人白细胞DR抗原(HLA-DR)水平,同时进行急性生理学与慢性健康状况评分系统Ⅱ(APACHEⅡ)评分,通过相关分析比较两者评价脓毒症预后的临床价值.结果 36例脓毒症患者入ICU时CD14+单核细胞HLA-DR表达＜30%者占16.67%(6/36例),APACHEⅡ评分为(24.17±4.45)分,两者之间的相关系数(r)=0.212,P=0.687;所有患者均死亡.CD14+单核细胞HLA-DR表达＜40%者占27.78%(10/36例),APACHEⅡ评分为(23.50±4.30)分,两者之间r=-0.251,P=0.484;病死率为80%(8/10例).结论 CD14+单核细胞HLA-DR表达＜30%是免疫抑制的判断指标,对脓毒症预后的判断可能优于APACHEⅡ评分.脓毒症发病早期存在原发性免疫抑制,提示经典代偿性抗炎反应综合征(CARS)假说可能需要进一步补充和完善.

Clinical value of monitoring CD14+ monocyte human leukocyte antigen (locus) DR levels in the early stage of sepsis

OBJECTIVE: To explore the relationship of monitoring CD14(+) monocyte human leucocyte antigen (locus) DR (HLA-DR) and the outcome in the early stage of sepsis. METHODS: Thirty-six definitely diagnosed septic patients in intensive care unit (ICU) were included. CD14(+) monocyte HLA-DR levels were detected by flow cytometer on the first day of the study, and acute physiology and chronic health evaluationII (APACHEII) scores were evaluated. Their clinical values in predicting the outcome of the disease were assessed through correlation analysis. RESULTS: Among 36 sepsis patients CD14(+) monocyte HLA-DR level<30% was found in 6 patients (16.67%). The average APACHEII score was 24.17+/-4.45 (r=0.212, P=0.687), all of them die, CD14(+) monocyte HLA-DR level <40% was 27.78% (10/36), the scores of APACHEII score was 23.50+/-4.30 (r=-0.0251, P=0.484), and the mortality rate was 80% (8/10). CONCLUSION: CD14(+) monocyte HLA-DR level <30% is an immunosuppressive index. In predicting the outcome of sepsis, it might be better than APACHEII scores. Immunosuppression is primarily found in the early stage of sepsis, suggesting that the classical compensatory anti-inflammatory response syndrome (CARS) hypothesis needs to be revised and improved.