International Journal of Current Research and Review
ISSN: 2231-2196 (Print)ISSN: 0975-5241 (Online)
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IJCRR - vol 06 issue 01, January, 2014

Pages: 69-71

Date of Publication: 30-Nov--0001


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DIAGNOSTIC SIGNIFICANCE OF ADA (ADENOSINE DEAMINASE) IN TUBERCULOUS PLEURAL EFFUSION

Author: Kalpana K. Dave, Nikunj V. Mehta, R.N. Gonsai, Dimple J. Dangia

Category: Healthcare

Abstract:Introduction: Adenosine deaminase (ADA) is a useful biochemical parameter for tuberculous pleural effusion. Studies have confirmed diagnostic role of Adenosine deaminase for early diagnosis of pleural tuberculosis in high prevalence countries like India. Objective: To assess the diagnostic level of ADA in tubercular pleural effusion and to determine its Sensitivity, Specificity, Positive and Negative predictive value. Material and Methods: The Retrospective study was carried out on 51 patients suffering from pleural effusion in B.J.M.C. Ahmedabad during May to Aug-2012. Detailed clinical history, physical examination and routine investigation of all patients including ADA estimation by Galanti And Giusti method was done. Results : ADA level in tuberculous pleural effusion ranged from 25-160 U/L with a mean level of 72 U/L and at >60 U/L the Sensitivity-69.2%, Specificity-92%, Positive Predictive Value-90% and Negative Predictive Value -74%. So this was best cut off point for ADA level to confirm diagnosis. Conclusion: ADA was found positive with a mean value of 72 U/L in tuberculous pleural effusion with 69.2% sensitivity and 92% specificity at cut off value of 60 U/L.

Keywords: Adenosine deaminase, Tuberculousis, Pleural effusion.

Full Text:

INTRODUCTION

Tuberculosis is one of the commonest infectious diseases which causes morbidity and mortality in countries like India(1) . Tuberculosis usually affects lungs but extra pulmonary tuberculosis is also common, of which tuberculous pleural effusion is one. Diagnosis of pulmonary tuberculosis is confirmed by sputum examination of AFB (Acid Fast Bacilli), while the diagnosis of tuberculous pleural effusion requires investigation of pleural fluid biochemistry, cytology and pleural biopsy. Pleural biopsy is usually the main diagnostic support but it is invasive and difficult procedure. So many biologic parameters have been introduced. One such parameter is ADA (Adenosine deaminase) which is excellent parameter for the diagnosis of tuberculous pleural effusion 

OBJECTIVE

For Assessment of diagnostic level of ADA in tubercular pleural effusion and to determine its Sensitivity, Specificity, Positive Predictive value and Negative predictive value.

MATERIALS AND METHODS

This Retrospective study was carried out on 51 patients in B.J.M.C, Ahmedabad during May-Aug 2012 of both sexes admitted as cases of exudative lymphocytic pleural effusion. Detailed clinical history, Physical examination and investigation e.g. AFB, cytology, Biochemical Examination Xray chest, pleural biopsy for exclusion of cases of tuberculosis enteric fever, leprosy, Viral Hepatitis and malignancy. ADA Estimation in pleural fluid was done by GALANTI and GIUSTI method.

RESULT

During the study period, 51 patients with exudative lymphocytic pleural effusion were investigated, out of which tuberculous pleural effusion was diagnosed in 26 patients. Other causes of exudative lymphocytic pleural effusion were malignancy (44.7%), chronic nonspecific inflammation (10%) and systemic lupus erythematosus (0.7%). ADA level in tuberculous pleural effusion ranged from 25-160 U/L with mean level of 72 U/L. At 60 U/L cut off point, sensitivity and specificity of the test for patient with tuberculous pleural effusion was 69.2% and 92% respectively while Positive Predictive Value and Negative Predictive Value was 90% and 74% respectively.

DISCUSSION

In our study we investigated 51 cases of exudative lymphocytic pleural effusion, out of which 32 were males and 19 were females ( Figure I ). Our findings seem to confirm the ADA activity is a useful parameter is Tuberculous pleural effusion. The mean level of ADA in tuberculous pleural effusion were higher than in any other disease (2) . Many studies have reported the utility of ADA in diagnosis of tuberculous pleural effusion with a wide Range of cut off value (40-85U/L). In our study ADA Level of 60 U/L was most suitable cut off value yielding sensitivity 69.2%, Specificity 92%, Positive predictive value 90% and Negative predictive value 74%. ( Table I and II). ADA, a product of T lymphocytes, is a very good parameter for diagnosis of tuberculous pleural effusion. Almost all research workers are using different cut off levels for measuring sensitivity and specificity of ADA level in pleural fluid. Burgess L.J.(2) showed ADA activity in tuberculous effusion was higher than in any other diagnostic group. At a level of 50U/L the DISCUSSION In our study we investigated 51 cases of exudative lymphocytic pleural effusion, out of which 32 were males and 19 were females ( Figure I ). Our findings seem to confirm the ADA activity is a useful parameter is Tuberculous pleural effusion. The mean level of ADA in tuberculous pleural effusion were higher than in any other disease (2) . Many studies have reported the utility of ADA in diagnosis of tuberculous pleural effusion with a wide Range of cut off value (40-85U/L). In our study ADA Level of 60 U/L was most suitable cut off value yielding sensitivity 69.2%, Specificity 92%, Positive predictive value 90% and Negative predictive value 74%. ( Table I and II). ADA, a product of T lymphocytes, is a very good parameter for diagnosis of tuberculous pleural effusion. Almost all research workers are using different cut off levels for measuring sensitivity and specificity of ADA level in pleural fluid. Burgess L.J.(2) showed ADA activity in tuberculous effusion was higher than in any other diagnostic group. At a level of 50U/L the

CONCLUSION

Estimation of ADA level is a simple, cheaper, inexpensive, highly sensitive and specific test employed routinely to differentiate between tubercular and non tubercular etiology in patients of pleura

ACKNOWLEDGEMENT We would like to express our gratitude to Department of Pathology, B.J. Medical College, Ahmedabad. We also acknowledge the great help received from the scholars whose articles cited and included in references of this manuscript. We are also grateful to authors / editors / publishers of all those articles, journals and books from where the literature for this article has been reviewed and discussed. We are grateful to IJCRR editorial board members and IJCRR team of reviewers who have helped to bring quality to this manuscript.

 

References:

1. Light R W. Pleural diseases. 3rd edition. Baltimore, Williams and Wilkins, 1995.

2. Burgess L.J. Use of adenosine deaminase as a diagnostic tool for tuberculous pleurisy. Thorax 1995 June; 50 (6): 672- 674.

3. Mathur P C, Tiwari K K, Trikha S, Tiwari D. Diagnostic value of adenosine

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Best Article Award

A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma COLAKOGLU entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by Arpita M. et al entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09
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Awardees of COVID-19 Research

Woman Researcher Award

A Study by Neha Garg et al. entitled "Optimization of the Response to nCOVID-19 Pandemic in Pregnant Women – An Urgent Appeal in Indian Scenario" published in Vol 12 issue 09

A Study by Sana Parveen and Shraddha Jain entitled "Pathophysiologic Enigma of COVID-19 Pandemic with Clinical Correlates" published in Vol 12 issue 13

A Study by Rashmi Jain et al. entitled "Current Consensus Review Article on Drugs and Biologics against nCOVID-19 – A Systematic Review" published in Vol 12 issue 09

Emerging Researcher Award

A Study by Madhan Jeyaraman et al. entitled "Vitamin-D: An Immune Shield Against nCOVID-19" published in Vol 12 issue 09

Study by Dheeraj Kumar Chopra et al. entitled "Lipid-Based Solid Dispersions of Azilsartan Medoxomil with Improved Oral Bioavailability: In Vitro and In Vivo Evaluation" published in Vol 12 issue 19


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