scholarly journals Unstimulated pleural fluid interferon-gamma for diagnosis of tuberculous pleural effusion: a systematic review and meta-analysis

Author(s):  
Ashutosh Nath Aggarwal ◽  
Ritesh Agarwal ◽  
Sahajal Dhooria ◽  
Kuruswamy Thurai Prasad ◽  
Inderpaul Singh Sehgal ◽  
...  

Objective: Unstimulated interferon-gamma may be a useful pleural fluid biomarker in the diagnosis of tuberculous pleural effusion (TPE). However, the exact threshold of pleural fluid interferon-gamma and its accuracy during routine clinical decision making is not clear. We assessed the performance of pleural fluid interferon-gamma in diagnosing TPE and tried to identify a useful assay threshold. Methods: We queried the PubMed and Embase databases for publications indexed until May 2020 that provided both sensitivity and specificity data on unstimulated pleural fluid interferon-gamma for diagnosis of TPE. A bivariate random effects model was employed to compute summary estimates for diagnostic accuracy parameters, both overall as well as at threshold ranges of <2, 2-5, and >5 IU/mL. Results: We retrieved 2048 citations, of which 67 publications (7153 patients) were assessed in our review. The summary estimates for sensitivity, specificity, and diagnostic odds ratio were 0.93 (95% CI 0.91-0.95), 0.96 (95% CI 0.94-0.97) and 310.72 (95% CI 185.24-521.18) respectively. Increasing interferon-gamma thresholds did not translate into any substantial change in diagnostic performance; however, eight studies using thresholds >5 IU/mL showed poorer diagnostic accuracy estimates as compared to other studies with lower thresholds. None of the prespecified subgroup variables significantly influenced relative diagnostic odds ratio in a multivariate meta-regression model. All publications demonstrated high risk of bias. Conclusion: Unstimulated pleural fluid interferon-gamma level provides excellent accuracy for diagnosing TPE, and has a potential of becoming a first-line test for this purpose.

Thorax ◽  
2017 ◽  
Vol 73 (3) ◽  
pp. 240-247 ◽  
Author(s):  
Wen Wang ◽  
Qiong Zhou ◽  
Kan Zhai ◽  
Yao Wang ◽  
Jing-Yuan Liu ◽  
...  

BackgroundAccurate differentiating diagnosis is essential for choosing treatment for exudative pleural effusions.ObjectiveTo establish the diagnostic accuracy of interleukin 27 for tuberculous pleural effusion (TPE).MethodsFirst, the concentrations of pleural interleukin 27, interferon-gamma and adenosine deaminase were compared between 51 patients with TPE and 103 with non-TPEs (Beijing cohort), and their diagnostic values were evaluated. These were further verified in another independent population (Wuhan cohort, n=120). In the second part of the study, we performed a meta-analysis.ResultsWith a cut-off value of 591.4 ng/L in the Beijing cohort, the area under the curve, sensitivity, specificity, positive predictive value and negative predictive value of interleukin 27 to diagnose TPE were 0.983 (95% CI 0.947 to 0.997), 96.1% (86.5% to 99.5%), 99.0% (94.7% to 100%), 98.0 (89.4 to 99.9) and 98.1 (93.3 to 99.8), respectively. Excellent diagnostic accuracy of interleukin 27 was also found in the Wuhan cohort and was further confirmed in the meta-analysis. The diagnostic performance of interleukin 27 was comparable to that of interferon-gamma and was more accurate than that of adenosine deaminase. Since the post-test probability of a negative result was always <0.1%, a negative test was considered to exclude TPE in all tuberculosis prevalence settings.ConclusionsInterleukin 27 can be used to diagnose TPE in a high prevalence setting, and a negative result can also be reliably used to rule out TPE in all prevalence settings.


PLoS ONE ◽  
2021 ◽  
Vol 16 (6) ◽  
pp. e0253525
Author(s):  
Ashutosh Nath Aggarwal ◽  
Ritesh Agarwal ◽  
Sahajal Dhooria ◽  
Kuruswamy Thurai Prasad ◽  
Inderpaul Singh Sehgal ◽  
...  

Objective We compared diagnostic accuracy of pleural fluid adenosine deaminase (ADA) and interferon-gamma (IFN-γ) in diagnosing tuberculous pleural effusion (TPE) through systematic review and comparative meta-analysis. Methods We queried PubMed and Embase databases to identify studies providing paired data for sensitivity and specificity of both pleural fluid ADA and IFN-γ for diagnosing TPE. We used hierarchical summary receiver operating characteristic (HSROC) plots and HSROC meta-regression to model individual and comparative diagnostic performance of the two tests. Results We retrieved 376 citations and included 45 datasets from 44 publications (4974 patients) in our review. Summary estimates for sensitivity and specificity for ADA were 0.88 (95% CI 0.85–0.91) and 0.91 (95% CI 0.89–0.92), while for IFN-γ they were 0.91 (95% CI 0.89–0.94) and 0.96 (95% CI 0.94–0.97), respectively. HSROC plots showed consistently greater diagnostic accuracy for IFN-γ over ADA across the entire range of observations. HSROC meta-regression using test-type as covariate yielded a relative diagnostic odds ratio of 2.22 (95% CI 1.68–2.94) in favour of IFN-γ, along with better summary sensitivity and specificity figures. No prespecified subgroup variable significantly influenced the summary diagnostic accuracy estimates. Conclusion Pleural fluid IFN-γ estimation has better diagnostic accuracy than ADA estimation for diagnosis of TPE.


2018 ◽  
Vol 7 (7) ◽  
pp. 831-834
Author(s):  
Kande Srinivasulu ◽  
◽  
Aruna Kumari Vadlavalli ◽  
Rajendra Prasad Jalagam ◽  
Nidudhavelu Gopichand ◽  
...  

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Neda Dalil Roofchayee ◽  
Majid Marjani ◽  
Neda K. Dezfuli ◽  
Payam Tabarsi ◽  
Afshin Moniri ◽  
...  

AbstractPatients with tuberculous pleural effusion (TPE) or malignant pleural effusions (MPE) frequently have similar pleural fluid profiles. New biomarkers for the differential diagnosis of TPE are required. We determined whether cytokine profiles in the PE of patients could aid the differential diagnosis of TPE. 30 patients with TPE, 30 patients with MPE, 14 patients with empyema (EMP) and 14 patients with parapneumonic effusion (PPE) were enrolled between Dec 2018 and 2019. The levels of interleukin (IL)-6, IL-18, IL-27, CXCL8, CCL-1 and IP-10 were determined in PE by ELISA along with measurements of adenosine deaminase (ADA). The best predictors of TPE were combined ADA.IL-27 [optimal cut-off value = 42.68 (103 U ng/l2), sensitivity 100%, specificity 98.28%], ADA [cut off value 27.5 (IU/l), sensitivity 90%, specificity 96.5%] and IL-27 [cut-off value = 2363 (pg/ml), sensitivity 96.7%, specificity 98.3%, p ≤ 0.0001]. A high level of IL-6 [cut-off value = 3260 (pg/ml), sensitivity 100%, specificity 67.2%], CXCL8 [cut-off value = 144.5 (pg/ml), sensitivity 93.3%, specificity 58.6%], CCL1 [cut-off value = 54 (pg/ml), sensitivity 100%, specificity 70.7%] and IP-10 [cut-off value = 891.9 (pg/ml), sensitivity 83.3%, specificity 48.3%] were also predictive of TPE. High ADA.IL-27, ADA and IL-27 levels differentiate between TPE and non-TPE with improved specificity and diagnostic accuracy and may be useful clinically.


2013 ◽  
Vol 16 ◽  
Author(s):  
Juan Botella ◽  
Ana Rosa Sepúlveda ◽  
Huiling Huang ◽  
Hilda Gambara

AbstractA meta-analysis was conducted to reach a pooled estimate of the diagnostic accuracy of the SCOFF. The 15 selected studies represented a total of 882 cases and 4350 controls. The main criterion for inclusion was that the primary study had provided diagnostic classification with both a diagnostic reference and with the SCOFF (with five items and a cut-off point of two). The pooled estimates were .80 (sensitivity) and .93 (specificity). The moderator variables gender and type of measure for the diagnostic reference (interview versus psychometric tests) account for part of the observed variability. For diagnostic references based on interviews the estimate of the efficacy improves significantly. For the studies that match this criterion the sensitivity is .882 and the specificity .925 (diagnostic odds ratio, 92.19). The main conclusion was that the five questions of the SCOFF constitute a very useful screening tool, in several languages; it is highly recommended for screening purposes.


2018 ◽  
Vol 20 (2) ◽  
pp. 164 ◽  
Author(s):  
Fajin Dong ◽  
Lei Zhang ◽  
Shuxia Wang ◽  
Duo Dong ◽  
Jinfeng Xu ◽  
...  

Aim: To evaluate the diagnostic accuracy of meniscal tears using B-mode ultrasound and high-frequency linear probe by conducting a systematic review and pooled meta-analysis. Material and methods: The Cochrane library, Embase, and Pubmed were searched for relevant studies up to 29 July 2017. The arthroscopy was used as the reference standard. The results were estimated by pooled sensitivity, specificity, diagnostic odds ratio, likelihood ratio, and the area under the summary receiver operating characteristic (SROC). Results: Seven prospective studies met the selection criteria, comprising 321meniscal tears from 472 patients. The pooled sensitivity, specificity, positive likelihood ratio, negative likelihood ratio, diagnostic odds ratio, and area under the SROC curve were 88.80% (95%CI: 82.83-92.87), 84.66% (95%CI: 75.89-90.64), 5.79(95%CI: 3.66-9.15), 0.13 (95%CI: 0.09-0.20), and 43.74 (95%CI: 24.01-79.68), respectively. The area under the SROC curve was 93% (95%CI: 91-95). Conclusions: This meta-analysis indicates that 2-dimensional ultrasound is useful, and could be routinely used for estimating meniscal injuries in the human knee joint


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