摘要目的 研究分析结核感染T细胞斑点试验(T cell spot test of tuberculosis infection,TSPOT.TB)在早期骨结核诊断中的临床应用价值。方法 收集粤北第二人民医院2017年7月至2018年12月收治的疑似TuliⅠ期及Ⅱ期骨结核病例80例行前瞻性研究,其中男43例,女37例;年龄10~75岁,平均年龄(45.25±7.62)岁。病例均符合纳入标准,研究对象自愿签署临床研究知情同意书;所有病例均行结核菌素纯蛋白衍生物试验(pure protein derivative,PPD试验)、抗结核抗体(tuberculosis antibody,TB-ab)检测、结核菌病原学检查(直接涂片及结核结核菌培养)及TSPOT.TB检测。将病理检查作为骨结核诊断金标准,骨结核病例归类为A组,非骨结核病归类为B组,观察两组病例的PPD皮试、TB-ab、病原学检查及TSPOT.TB的灵敏度、特异度及阳性预测值。结果 TSPOT.TB诊断早期骨结核的灵敏度为86.54%、特异度为92.86%、阳性预测值为95.74%,均显著高于PPD皮试、抗结核抗体(P=0.017);TSPOT.TB特异度、阳性预测值低于结核菌病原学检查(P=0.871),灵敏度显著高于结核菌病原学检查(P=0.001)。TSPOT.TB诊断骨结核的ROC曲线下面积最大,诊断价值最高。结论 TSPOT.TB应用于早期骨结核诊断具有高灵敏度和特异度、阳性预测值,检测安全、可靠、快速,值得临床推广应用。
Abstract:Objective To study the clinical application value of T cell spot test of tuberculosis infection(T-SPOT.TB) in the diagnosis of early bone tuberculosis.Methods A prospective study of 80 suspected cases of TuliI and stage Ⅱ tuberculosis admitted to the Second People's Hospital of North Guangdong from July 2017 to December 2018 was conducted.There were 43 males and 37 females with an average age of (45.25±7.62) years (range,10~75 years).All cases met the inclusion criteria.The subjects voluntarily signed the informed consent form for clinical research.All cases were tested for tuberculin pure protein derivative test (PPD skin test),anti-tuberculosis antibody (TB-ab) test,tuberculosis pathogen test (direct smear and tuberculosis tuberculosis culture) and TSPOT.TB test. The pathological examination was used as the gold standard for diagnosis of bone tuberculosis.The cases of bone tuberculosis were classified into group A,and the cases of non-tuberculosis were classified into group B.The sensitivity of PPD skin test,TB-ab,pathogen examination and TSPOT.TB were observed in the two groups.Results The sensitivity of TSPOT.TB in the diagnosis of early bone tuberculosis was 86.54%,specificity was 92.86%,and positive predictive value was 95.74%,which was significantly higher than PPD skin test and anti-tuberculosis antibody (P=0.017);TSPOT.TB specificity The positive predictive value was lower than that of the tuberculosis pathogen examination (P=0.871),and the sensitivity was significantly higher than that of the tuberculosis pathogen examination (P=0.001).TSPOT.TB diagnoses bone tuberculosis with the largest area under the ROC curve and the highest diagnostic value.Conclusion TSPOT.TB has high sensitivity,specificity and positive predictive value for early diagnosis of bone tuberculosis.The detection is safe,reliable and rapid,and it is worthy of clinical application.
缪标烈,毛兴敏,刘增辉,陈仁春 *. 结核感染T细胞斑点试验诊断早期骨结核的临床价值分析[J]. 实用骨科杂志, 2020, 26(9): 797-801.
Miao Biaolie,Mao Xingming,Liu Zenghui,et al. Analysis of the Clinical Value of Tuberculosis Infection Tcell Spot Test in Diagnosis of Early Stage Bone Tuberculosis. sygkzz, 2020, 26(9): 797-801.
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