scholarly journals Diagnostic value of pleural fluid adenosine deaminase level in patients of tubercular pleural effusion

2020 ◽  
Vol 8 (1) ◽  
pp. 93
Author(s):  
Amit Goyal ◽  
Amanpreet Kaur ◽  
N. C. Kajal
Keyword(s):  
Pleural Effusion ◽  
Adenosine Deaminase ◽  
Pleural Fluid ◽  
Diagnostic Value ◽  
Diagnostic Methods ◽  
Common Symptom ◽  
Age Group ◽  
Laboratory Findings ◽  
Adult Age ◽  
Invasive Test

Background: The diagnosis of tuberculosis (TB) continues to be a challenge in clinical practice. Traditional diagnostic methods are very useful but don't provide enough sensitivity and specificity. Adenosine deaminase (ADA) has been developed and widely used for the diagnosis of TB. This article reviews the characteristics, metabolism and clinical uses of ADA for the diagnosis of TB in clinical practices.Methods: This study was carried out in the department of chest and TB, GMC, Amritsar, Punjab, India. In this study total 50 who attended outpatient department (OPD) and indoor patients of adult age and either sex were taken. Patients with pleural effusion as determined by clinical and or radiological means, thoracocentesis on who yield a minimum amount of fluid enough to carry out routine test were included in the study.Results: Most of the patients were between the age group of 15-34 years, of those 72% were males and 28% female. Most of the patients of tuberculous effusion were from younger age group between 25-34 years. Most common symptom was breathlessness (90%) followed by fever (75%), cough (75%) then chest pain (72%). The diagnosis of TB was made in 40 patients (80%), while in 10 patients (20%) TB were excluded (malignancy and miscellaneous disease) based on history, clinical and laboratory findings. Sensitivity of ADA in diagnosing TB pleural effusion was 95% and specificity 80%.Conclusions: ADA level of the pleural fluid is a non-invasive test. Pleural fluid ADA is useful in early diagnosing of tuberculosis pleural effusion. So the analysis of ADA levels can be done simply, quickly and cheaply.

scholarly journals Diagnostic significance of pleural fluid adenosine deaminase activity in tuberculous pleurisy

1970 ◽  
Vol 5 (1) ◽  
pp. 1-5
Author(s):  
Sharmeen Ahmed ◽  
Reaz Fatema ◽  
Ahmed Abu Saleh ◽  
Mumayun Sattar ◽  
Md Ruhul Amin Miah
Keyword(s):  
Pleural Effusion ◽  
Adenosine Deaminase ◽  
Pleural Fluid ◽  
Colorimetric Method ◽  
Diagnostic Methods ◽  
Test Accuracy ◽  
Diagnostic Significance ◽  
Tuberculous Pleural Effusion ◽  
Adenosine Deaminase Activity ◽  
Significant Difference

Diagnosis of tuberculous pleural effusion (TPE) is difficult because of its non-specific clinical presentation and insufficient efficiency of conventional diagnostic methods. The study was carried out to evaluate the utility of adenosine deaminase (ADA) activity in pleural fluid for the diagnosis of TPE. ADA activity was measured in pleural fluid of 103 pleural effusion patients by colorimetric method using a commercial ADA assay kit. The diagnosis of TPE was made from pleural fluid examinations (including cytology, biochemistry, and bacteriology) and pleural biopsy. Patient with negative result of this methods were diagnosed by response of empirical treatment. Out of 130 cases, 62 (61.1%) had TPE and the remaining 41 (39.8%) had pleural effusion due to non tuberculous diseases. There was statistically significant difference (p < 0.001) between the mean of pleural fluid ADA levels (70.82±22.54 U/L) in TPE group and (30.07±22.93 U/L) in non-TPE group. Of 62 TPE cases, microscopy for AFB and culture for M.tuberculosis in pleural fluid revealed positivity in 9.6% and 22.5% cases respectively, and biopsy of pleura showed typical epithelioid granuloma in only 43.5% cases. The cut-off value of ADA for diagnosing TPE was 40 U/L using a ROC curve, with a sensitivity of 94% and specificity of 88%. Positive and negative predictive value of ADA assay were 92% and 90% respectively. The overall test accuracy was 90%. Pleural fluid ADA assay is therefore a simple, rapid, highly sensitive and specific adjunct test for diagnosis of TPE. DOI: http://dx.doi.org/10.3329/imcj.v5i1.9852   Ibrahim Med. Coll. J. 2011; 5(1): 1-5 Keywords: Pleural fluid; adenosine deaminase; tuberculous pleural effusion

scholarly journals Nilai Diagnostik Adenosine Deaminase (ADA) Cairan Pleura pada Penderita Efusi Pleura Tuberkulosi

2019 ◽  
Vol 2 (2) ◽  
pp. 35
Author(s):  
Rizki Nur Amalia ◽  
Isnu Pradjoko
Keyword(s):  
Pleural Effusion ◽  
Adenosine Deaminase ◽  
Pleural Fluid ◽  
Diagnostic Methods ◽  
Cross Sectional ◽  
Kappa Test ◽  
Significant Difference ◽  
Observational Statistic ◽  
Effusion Method ◽  
Level Of Agreement

Background: Tuberculosis pleural effusion is the most common extrapulmonary TB after lymphadenitis TB. Limited diagnostic methods make TB pleural effusion hard to diagnose. Adenosine deaminase ADA is an enzyme in purin catabolism process which catalyze adenosine into inosine and deoksiadenosine into deoksiinosin. This process is important in lymphoid cell differentiation. ADA is elevated in TB pleural effusion. Method: This study was a cross sectional analytic observational. Statistic analysis was using two independent samples T test. ROC curve was used to determine cut off value of ADA. Kappa test was used to determined the level of agreement of ADA cut off value. Results: Forty eight samples were included in this study, 18 samples with TB pleural effusion and 30 samples with non TB pleural effusion. There was significant difference between pleural fluid ADA in TB and non TB. Positivity of AFB sputum and MTB culture did not show any significant differences. Cut off ADA value for TB pleural effusion diagnosis was 39,19 with sensitivity 88,9% and spesificity 90%. Conclusion: Examination of ADA level in pleural fluid is a usefull tool to diagnose TB pleural effusion.

Diagnostic value of pleural fluid adenosine deaminase activity in tuberculous pleurisy

2004 ◽  
Vol 341 (1-2) ◽  
pp. 101-107 ◽  
Author(s):  
Mo-Lung Chen ◽  
Wai-Cho Yu ◽  
Ching-Wan Lam ◽  
Kam-Ming Au ◽  
Fuk-Yip Kong ◽  
...  
Keyword(s):  
Adenosine Deaminase ◽  
Pleural Fluid ◽  
Diagnostic Value ◽  
Adenosine Deaminase Activity ◽  
Tuberculous Pleurisy

scholarly journals The relation of the pleural thickening in tuberculosis pleurisy with the activity of adenosine deaminase

2005 ◽  
Vol 63 (2) ◽  
Author(s):  
B. Uskul ◽  
H. Turker ◽  
C. Ulman ◽  
M. Ertugrul ◽  
A. Selvi ◽  
...  
Keyword(s):  
Pleural Effusion ◽  
Adenosine Deaminase ◽  
Pleural Fluid ◽  
Clinical Findings ◽  
X Rays ◽  
Biochemical Tests ◽  
Pleural Thickening ◽  
Group I ◽  
Immunological Mechanisms ◽  
Tuberculosis Pleurisy

Selvi, A. Kant, S. Arslan, M. Ozgel. Background: Residual pleural thickening (RPT) still occurs in most patients with tuberculosis pleurisy despite advances in the treatment of tuberculosis. The aim of this study was to evaluate the significance of RPT in tuberculosis pleurisy with the patients clinical findings, biochemical and microbiological properties of pleural effusion and with the total adenosine deaminase (ADA) and isoenzymes levels. Methods: 121 tuberculosis pleurisy patients were evaluated retrospectively. According to posteroanterior chest x-rays, the 63 (52%) cases with the thickness 2 mm or more in lower lateral hemithorax were grouped as I and the 58 (48%) cases without pleural thickness were grouped as II. The amount of pleural effusion was classified into small, medium or massive according to their chest x-rays. In both groups; sex, age, symptoms score, bacteriological and biochemical tests and ADA levels were recorded. Results: 81 (67%) male and 40 (33%) female, overall 121 patients were enrolled into the study. RPT was found higher in males (p=0.014) and the increase ran parallel with the amount of cigarette smoking (p=0.014). RPT was found to be lower in small effusions (p=0.001). The group with RPT, the serum albumin was found lower (p=0.002), pleural fluid total protein (p=0.047) and the ratio of pleural fluid protein to serum protein (p=0.002) were found higher. In group I, total ADA: 69.5±38.9 IU/L and ADA2: 41.3±31.6 IU/L were higher than the cases without RPT (p=0.032, p=0.017, respectively). Conclusions: We suggest that the immunological mechanisms are effective in the development of pleural thickening.

scholarly journals Diagnostic Value of Flexible Thoracoscopy in Undiagnosed Cases of Exudative Pleural Effusion

2020 ◽  
Vol 7 (47) ◽  
pp. 2783-2786
Author(s):  
Vengada Krishnaraj S.P. ◽  
Gayathri S. Mohan ◽  
Vinod Kumar V ◽  
Sridhar R
Keyword(s):  
Pleural Effusion ◽  
Pleural Fluid ◽  
Complete Blood Count ◽  
Diagnostic Yield ◽  
Diagnostic Value ◽  
Parietal Pleura ◽  
Pleural Biopsy ◽  
Cardiac Evaluation ◽  
Exudative Pleural Effusion ◽  
Fluid Cytology

BACKGROUND The diagnostic yield of thoracoscopy is 95 %, of pleural fluid cytology it is 62 % and of closed pleural biopsy is 44 %, in malignant effusion. We wanted to study the diagnostic utility of flexible thoracoscopy in undiagnosed exudative pleural effusion and compare the thoracoscopy findings with the histopathology results. METHODS The study was conducted in the Department of Respiratory Medicine, Government Stanley Medical College, Chennai, from January 2019 to January 2020. 40 patients were enrolled in this longitudinal observational study with moderate to massive effusion and were evaluated with pleural fluid aspiration and sent for cytology, protein sugar analysis, total count, and ADA. Those cases which are exudative pleural effusions, with ADA value of less than 40 IU / L were subjected to thoracoscopy after being evaluated for fitness for thoracoscopy with complete blood count, bleeding time, clotting time, sputum for AFB, ECG, pulse oximetry, cardiac evaluation and CT chest. RESULTS Thoracoscopy was done in 40 enrolled patients. In this study, biopsy was taken from the parietal pleura in all the cases. Of these 40 cases, 30 were male and 10 were female, that is 75 % males and 25 % females. The mean age of the study population was 43 ± 14.9. Patient with the lowest age in this study group was 18 years and highest was 71 years. 16 cases (40 %) presented with left sided pleural effusion. 24 cases (60 %) presented with right sided pleural effusion. 30 cases presented with massive effusion, and 10 cases with moderate effusion. Of the 40 cases, 27 cases presented with straw coloured pleural effusion. 13 cases were haemorrhagic effusion. Histopathologic examination showed 11 cases as malignant and 29 cases as non-malignant out of which 18 cases were of tuberculosis aetiology. Thoracoscopy revealed adhesions in 13 cases and mass lesion in 4 cases. Of the 4 mass lesions 3 came as malignant, normal pleura in 11 cases, 10 were non-malignant and 1 was malignant. Nodules were seen in 12 cases of which 7 came as malignant. Straw coloured effusion was seen in 27 cases, of which 2 were malignant. CONCLUSIONS The most important indication for thoracoscopy is exudative undiagnosed pleural effusion. The overall diagnostic yield in pleural fluid cytology is 62 % and blind pleural biopsy is 44 %. The diagnostic yield of thoracoscopy varies from 60 % to 97 % in various studies, whereas, in our study, it is 72.5 %. Visualization of the visceral and parietal pleura is another advantage, so that we can take biopsy from the abnormal areas. KEYWORDS Flexible Thoracoscopy, Undiagnosed Exudative Pleural Effusion

scholarly journals CEA and ADA in Pleural Fluid for Differential Malignant Pleural Effusion and Tuberculous Pleural Effusion

2021 ◽  
Author(s):  
Jianhong Yu ◽  
Qirui Cai
Keyword(s):  
Pleural Effusion ◽  
Pleural Fluid ◽  
Roc Curve ◽  
Malignant Pleural Effusion ◽  
Diagnostic Value ◽  
Diagnostic Model ◽  
Diagnostic Efficacy ◽  
Tuberculous Pleural Effusion ◽  
Diagnostic Models ◽  
Independent Risk Factors

Abstract Objective This study aimed to establish a predictive model based on the clinical manifestations and laboratory findings in pleural fluid of patients with pleural effusion for the differential diagnosis of malignant pleural effusion (MPE) and tuberculous pleural effusion (TPE). Methods Clinical data and laboratory indices of pleural fluid were collected from patients with malignant pleural effusion and tuberculous pleural effusion in Zigong First People's Hospital between January 2019 and June 2020，and were compared between the two groups. Independent risk factors or Independent protective factors for malignant pleural effusion were investigated using multivariable logistic regression analysis. Receiver operating characteristic curve (ROC) analysis was performed to assess the diagnostic performance of factors with independent effects, and combined diagnostic models were established based on two or more factors with independence effect. ROC curve was used to evaluate the diagnostic ability of each model, and the fit of the eath model was measured using Hosmer-Lemeshow goodness-of-fit test. Results Patients with MPE were older than those with TPE, the rate of fever of patients with MPE was lower than that of patients with TPE, and these differences were statistically significant (p < 0.05). Carcinoembryonic antigen (CEA), neuron-specific enolase (NSE), cytokeratin-19 fragment antigen (CYFRA21-1), cancer antigen 125 (CA125), and glucose (GLU) levels in the pleural fluid were higher, but total protein (TP), albumin (ALB) and Adenosine deaminase (ADA) levels in the pleural fluid were lower in MPE patients than in TPE patients, and the differences were statistically significant (P<0.05). In multivariate logistic regression analysis, CEA and NSE levels in the pleural fluid were independent risk factors for MPE, whereas ADA levels in pleural fluid and fever were independent protective factors for MPE. The differential diagnostic value of pleural fluid CEA and pleural fluid ADA for MPE and TPE were higher than that of pleural fluid NSE（p<0.05） and the area under the ROC curve was 0.901, 0.892, and 0.601, respectively. Four different binary logistic diagnostic models were established based on pleural fluid CEA combined with pleural fluid NSE, pleural fluid ADA or ( and ) fever. Among them, the model established with the combination of pleural fluid CEA and pleural fluid ADA (logit (P) = 0.513 + 0.457*CEA-0.101*ADA) had the highest diagnostic value for malignant pleural effusion, and its predictive accuracy was high with an area under the ROC curve of 0.968 [95% confidence interval (0.947, 0.988)]. But the diagnostic efficacy of the diagnostic model could not be improved by adding pleural fluid NSE and fever. Conclusion The model established with the combination of CEA and ADA in the pleural fluid has a high differential diagnostic value for malignant pleural effusion and tuberculous pleural effusion, and NSE in the pleural fluid and fever cannot improve the diagnostic efficacy of the diagnostic model.

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