血清降钙素原在血液透析导管相关性感染诊断中的应用价值
2017-03-28何晗刘新君魏炯
何晗+刘新君+魏炯


【摘要】 目的 探讨血清降钙素原(PCT)在行血液透析置管引起的导管相关性感染诊断中的应用价值。方法 采用免疫化学发光法检测导管相关性感染患者(75例)和非感染患者(400例)血清PCT和白细胞计数(WBC)水平, 通过ROC曲线评价PCT和WBC指标对导管相关性感染的诊断价值。结果 感染组患者血清PCT为(1.58±0.36)ng/ml, WBC水平为(7.53±0.67)×109/L, 显著高于非感染组PCT为(0.11±
0.08)ng/ml, WBC水平为(5.15±0.52)×109/L, 差异具有统计学意义(P<0.05);ROC曲线分析显示, 血清PCT和WBC的ROC曲线下面积(AUC)分别为0.845和0.512, 并且PCT的AUC、诊断的敏感性(84.2%)及特异性(82.6%)均较WBC(敏感性:61.5%, 特异性:30.7%)升高。结论 血清PCT水平在血液透析导管相关性感染患者中明显升高, 其对导管相关性感染的诊断具有较好的敏感性和特异性。
【关键词】 降钙素原;白细胞计数;导管相关性感染;诊断
DOI:10.14163/j.cnki.11-5547/r.2017.05.011
Application value of serum procalcitonin in diagnosis of hemodialysis catheter-related infection HE Han, LIU Xin-jun, WEI-jiong. Department of Nephrology, Sichuan Bazhong City Central Hospital, Bazhong 636000, China
【Abstract】 Objective To investigate application value of serum procalcitonin (PCT) in diagnosis of hemodialysis catheterization-induced catheter-related infection. Methods Immunochemistry luminescence method was applied to detect serum PCT and white blood cell count (WBC) levels in catheter-related infection patients (75 cases) and patients without infection (400 cases). Diagnostic value by PCT and WBC for catheter-related infection was evaluated by ROC curve. Results The infection group had serum PCT as (1.58±0.36) ng/ml
and WBC as (7.53±0.67)×109/L, which were obviously higher than PCT as (0.11±0.08) ng/ml and WBC as (5.15±0.52)×109/L in the non-infection group, and their difference had statistical significance (P<0.05). ROC curve analysis showed area under curve (AUC) of ROC respectively as 0.845 and 0.512 in serum PCR and WBC. PCT had all higher AUC, sensitivity (84.2%) and specificity (82.6%) in diagnosis than WBC (sensitivity as 61.5%, specificity as 30.7%). Conclusion High level of serum PCT is shown in patients with hemodialysis catheter-related infection, and it provides excellent sensitivity and specificity in diagnosis of catheter-related infection.
【Key words】 Procalcitonin; White blood cell count; Catheter-related infection; Diagnosis
中心靜脉置管是血液透析患者建立血液通路最常见的方式之一[1]。但中心静脉导管置管容易导致导管相关性感染的发生, 从而严重影响患者病情及预后 [2]。如何早期诊断导管相关性感染, 对于改善血液透析患者临床疗效及预后, 具有重要的临床意义。近年来, 血清PCT对于细菌性感染患者的诊断、评估临床疗效及预后方面, 具有重要的临床作用[3]。本研究通过对475例血液透析患者血清PCT及WBC水平进行检测, 评估PCT对早期导管相关性感染的诊断价值。
1 资料与方法
1. 1 一般资料 选取2013年1月~2016年1月在本院通过颈内静脉长期留置导管行血液透析治疗的475例尿毒症患者作为研究对象, 其中男285例, 女190例, 平均年龄(56.2±8.2)岁。
根据是否发生导管相关性感染将其分为感染组(75例)与非感染组(400例)。……
