摘要
目的：探讨多糖包被代谢产物在感染性休克患者血液中的变化及临床意义。方法采用前瞻性对照临床研究方法，以2014年6月至2015年5月入住滨州医学院附属医院重症医学科年龄≥18岁且确诊为感染性休克的患者为研究对象，测定患者入组0、6、12、24和48h血中多糖包被降解产物透明质酸（HA）、硫酸乙酰肝素（HS）水平；以同期20例健康体检者作为对照。分析感染性休克患者血中HA、HS的变化；28d存活组和死亡组血中HA和HS水平的差异；采用Pearson相关法分析血中HA、HS水平与肿瘤坏死因子-α（TNF-α）、序贯器官衰竭评分（SOFA）、血乳酸（Lac）、血小板、白蛋白的相关性。绘制受试者工作特征曲线（ROC），评估HA和HS对感染性休克患者预后的预测价值。结果共31例感染性休克患者入选，28d死亡17例，病死率为54.8%。感染性休克患者血中HA和HS水平均较健康对照组明显升高，且48h达峰值，与0h比较差异有统计学意义〔HA（μg/L）：119.47±32.44比94.84±23.63，HS（μg/L）：72.83±19.03比58.83±16.63，均P＜0.05〕。死亡组患者入组0h、48h血中HA、HS水平均较存活组明显增高〔HA（μg/L）：130.42±27.67比93.29±29.80，105.14±19.18比70.82±13.24；HS（μg/L）：67.23±25.01比39.23±14.58，79.74±19.84比56.17±14.53；均P＜0.05〕。感染性休克患者入组时血中HA和HS与TNF-α、SOFA评分、Lac、血小板均呈显著正相关，与白蛋白呈显著负相关（HA的r值分别为0.595、0.462、0.545、0.466、-0.534，HS的r值分别为0.607、0.468、0.563、0.547、-0.455，均P＜0.05）。0h、48h血中HA和HS水平对感染性休克患者预后预测的ROC曲线下面积（AUC）分别为0.881、0.940和0.833、0.821，敏感度分别为87.5%、100.0%和83.3%、81.3%，特异度分别为82.6%、78.3%和91.3%、78.3%。结论感染性休克患者内皮细胞多糖包被降解产物在血中的含量明显升高，其升高程度与疾病严重程度、微循环障碍程度及炎性因子水平有关。
Objective To explore the variation and clinical value of the degradation of endothelial glycocalyx in the patients with septic shock. Methods A prospective case control study was conducted. Patients of 18 years or older diagnosed with septic shock and admitted to Department of Critical Care Medicine of Affiliated Hospital of Binzhou Medical University from June 2014 to May 2015 were enrolled. The levels of degradation products, including hyaluronic acid （HA） and heparin sulfate （HS）, at 0, 6, 12, 24, 48 hours were determined, while 20 healthy people were enrolled and served as controls. The changes of HA and HS were analyzed in the patients with septic shock. The differences of HA and HS between survival group and death group after 28 days were also analyzed. The relationships between HA, HS and tumor necrosis factor-α （TNF-α）, sequential organ failure assessment （SOFA） score, arterial blood lactate （Lac）, platelet, albumin were analyzed by Pearson correlation analysis. The receiver-operating characteristic （ROC） curve was plotted to assess the prognostic value of HA and HS for patients with septic shock. Results Thirty-one patients diagnosed as septic shock were enrolled, among whom 17 patients died after 28 days, with a mortality of 54.8%. The levels of HA and HS in patients with septic shock were increased significantly as compared with those of health control group, peaked at 48 hours, and the levels of HA and HS at 48 hours were significantly higher than those at 0 hour [HA （μg/L）： 119.47±32.44 vs. 94.84±23.63, HS （μg/L）： 72.83±19.03 vs. 58.83±16.63, both P 〈 0.05]. The levels of HA and HS at 0 hour and 48 hours in death group were significantly higher than those of the survival group [HA （μg/L）： 130.42±27.67 vs. 93.29±29.80, 105.14±19.18 vs. 70.82±13.24; HS （μg/L）： 67.23±25.01 vs. 39.23±14.58, 79.74±19.84 vs. 56.17±14.53, all P 〈 0.05]. The levels of HA and HS in patients with septic shock were remarkably positively correlated with the levels of TNF-α, SOFA score, Lac, and platelet, but were remarkably negatively correlated with albumin levels （r value of HA was 0.595, 0.462, 0.545, 0.466, -0.534, respectively; r value of HS was 0.607, 0.468, 0.563, 0.547, -0.455, respectively; all P 〈 0.05）. It was demonstrated by ROC curves that the areas under ROC curve （AUC） of HA and HS at 0 hour and 48 hours for predicting the prognosis of patients with septic shock were 0.881, 0.940 and 0.833, 0.821, respectively, the sensitivities of HA and HS were 87.5%, 100.0% and 83.3%, 81.3%, respectively, and the specificities of HA and HS were 82.6%, 78.3% and 91.3%, 78.3%, respectively. Conclusions The concentrations of degradation products generated by endothelial glycocalyx in the blood of the patients with septic shock are remarkably increased. The elevated levels of the degradation products are closely associated with the severity of septic shock, microcirculation disturbance, and the levels of inflammatory factors.
出处
《中华危重病急救医学》
CAS
CSCD
北大核心
2016年第8期699-703,共5页
Chinese Critical Care Medicine
基金
山东省自然科学基金（2014ZRB14253）
