检验医学 ›› 2015, Vol. 30 ›› Issue (10): 987-990.DOI: 10.3969/j.issn.1673-8640.2015.10.005

• 临床应用研究·论著 • 上一篇    下一篇

胸水ADA、LDH诊断结核性胸膜炎的临床效能评价

李多孚1, 陈郁琳2, 夏雨3   

  1. 1.南充市中心医院检验科,四川 南充 637000
    2.武汉市第六人民医院检验科,湖北 武汉 430014
    3.川北医学院检验系2009级,四川 南充 637000
  • 收稿日期:2015-01-09 出版日期:2015-10-30 发布日期:2015-11-04
  • 作者简介:null

    作者简介:李多孚,男,1955年生,主任技师,主要从事临床免疫学检验工作。

Evaluation on the clinical diagnosis efficiency of pleural fluid ADA and LDH for tuberculous pleuritis

LI Duofu1, CHEN Yulin2, XIA Yu3   

  1. 1. Department of Clinical Laboratory, Nanchong Central Hospital, Sichuan Nanchong 637000, China
    2. Department of Clinical Laboratory, Wuhan Sixth People's Hospital, Hubei Wuhan 430014, China
    3.Grade 2009, Department of Laboratory Medicine, Beichuan Medical College, Sichuan Nanchong 637000, China
  • Received:2015-01-09 Online:2015-10-30 Published:2015-11-04

摘要: 目的

探讨胸水中腺苷脱氨酶(ADA)、乳酸脱氢酶(LDH)对鉴别结核性、癌性和其它疾病胸腔积液的临床价值。

方法

回顾性分析行胸腔积液常规检测的住院患者的资料,其中结核患者38例、肿瘤患者74例、其它疾病患者108例。应用受试者工作特征(ROC)曲线确定胸腔积液ADA、LDH诊断结核性胸膜炎的最佳临界值,并计算ADA、LDH诊断结核性胸膜炎的临床诊断效能。

结果

结核组、肿瘤组、其它疾病组ADA活性{中位数(M)[四分位间距(Q)]}分别为47.30(26.50)、8.15(6.50)、5.40(8.40)U/L,各组间差异均有统计学意义(Z值分别为6.981、6.978、2.302,P均<0.05);LDH活性[M(Q)]分别为453.68(242.07)、252.00(368.00)、101.50(192.00)U/L,各组间差异均有统计学意义(Z值分别为2.419、5.386、4.324,P均<0.05)。ROC曲线确定胸腔积液ADA诊断结核性胸膜炎的最佳临界值为26.7 U/L,灵敏度为89.5%、特异性为89.6%;LDH诊断结核性胸膜炎的最佳临界值为173.5 U/L,灵敏度为92.1%、特异性为54.4%;ADA和LDH联合检测的灵敏度为89.5%、特异性为54.1%。

结论

胸腔积液ADA是诊断与鉴别结核性胸膜炎重要的指标,LDH特异性相对较低,但也有一定的参考意义。两者联合检测的临床诊断效能并不升高。

关键词: 腺苷脱氨酶, 乳酸脱氢酶, 结核性胸膜炎, 胸腔积液, 受试者工作特征曲线

Abstract: Objective

To investigate the clinical significance of pleural fluid adenosine deaminase(ADA) and lactate dehydrogenase(LDH) for diagnosing tuberculosis, cancer and other diseases.

Methods

A retrospective analysis was performed for the data of pleural fluid in inpatients, including 38 cases of tuberculosis, 74 cases of cancer and 108 cases of other diseases. Receiver operating characteristic(ROC) curve was used to determine pleural fluid ADA and LDH optimal thresholds for the diagnosis of tuberculous pleuritis. The clinical diagnosis efficiency was calculated for the diagnosis of tuberculous pleuritis.

Results

ADA activities {median (M) [quartile(Q)]} were 47.30(26.50), 8.15(6.50) and 5.40(8.40)U/L for tuberculosis, cancer and other disease groups, and the differences were statistically significant (Z values were 6.981, 6.978 and 2.302, P<0.05). LDH activities[M(Q)] were 453.68(242.07), 252.00(368.00) and 101.50(192.00)U/L, and the differences were statistically significant (Z=2.419, 5.386 and 4.324, P<0.05). ROC curve showed that the optimal threshold of ADA for the diagnosis of tuberculous pleuritis was 26.7 U/L, the sensitivity was 89.5 %, and the specificity was 89.6%. The optimal threshold of LDH for the diagnosis of tuberculous pleuritis was 173.5 U/L, the sensitivity was 92.1 %, and the specificity was 54.4 %. The sensitivity and specificity of ADA and LDH combination determination were 89.5% and 54.1%.

Conclusions

ADA is an important indicator for tuberculous pleuritis, and LDH has relatively low specificity for the diagnosis of tuberculous pleurtis with certain reference significance. The combination determination has not high clinical diagnosis efficiency.

Key words: Adenosine deaminase, Lactate dehydrogenase, Tuberculous pleuritis, Pleural fluid, Receiver operating characteristic curve

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