PLEURAL FLUID ADA IN THE DIAGNOSIS OF PLEURAL EFFUSION
Journal Title: Journal of Evolution of Medical and Dental Sciences - Year 2017, Vol 6, Issue 60
Abstract
BACKGROUND Evaluation of pleural effusion is a common medical problem and despite the use of standard pleural fluid measurements and pleural biopsy the aetiology remains uncertain in a considerable number of cases. In our study, we assessed the importance of ADA activity in the diagnosis of pleural effusion. MATERIALS AND METHODS We studied 100 cases of pleural effusions of varying aetiology. Analysis of pleural fluid biochemistry cytology, ADA levels, ZN stain and results of pleural biopsy were analysed. This was a descriptive study. Statistical Analysis- Data were summarised using descriptive statistics such as percentages for categorical variables and mean with standard deviation for quantitative variables. For inferential statistics, two sample t-test was applied. A ‘p’ value of < 0.05 was considered significant. Sensitivity, specificity, positive predictive value and negative predictive values were calculated for using ADA as a screening test of TB pleural effusion. RESULTS We found Tubercular and Parapneumonic effusions in a younger age group (20 - 50 yrs.), whereas malignant effusions and those due to cardiac failure were found in an older subset (50 - 80 yrs.). Pleural biopsy positivity rate was 60% - 80% in tuberculosis and 50% - 85% in malignant effusions. ZN smear for AFB gave poor yield in sputum and pleural fluid. In all our patients, pleural fluid ADA was above 41.5 U/L with a mean value of 73.92 U/L. CONCLUSION Pleural fluid ADA in tubercular pleural effusion has a sensitivity, specificity, positive predictive value and negative predictive value at a cut-off of 41.5 U/L of 100%, 87%, 90%, 100% respectively.
Authors and Affiliations
Damanjit Duggal, Anand Yannawar, Vinay Dharmadhikari
Keywords
Related Articles
- EP ID EP226829
- DOI 10.14260/Jemds/2017/956
- Views 88
- Downloads 0
PROCESSES OF CHANGE ASSOCIATED WITH THE FRUIT AND VEGETABLE CONSUMPTION ACROSS STAGES OF CHANGE IN WOMEN- APPLICATION OF TRANSTHEORETICAL MODEL
BACKGROUND Consumption of fruits and vegetables is associated with the reduction of many chronic diseases. Transtheoretical model is one of the most common models used for studies on nutrition. The objective of this stud...
CLINICO-EPIDEMIOLOGICAL PROFILE AND OUTCOME OF CASES OF HYDATID CYST- A PROSPECTIVE AND RETROSPECTIVE STUDY
BACKGROUND Hydatid cyst is the most common cause of cystic Liver disease world-wide. Hydatid disease is a zoonoses caused by small taeniidtype tapeworm Echinococcus. Man is an accidental intermediate and dead end host. M...
NEUROCUTANEOUS MELANOSIS
PRESENTATION OF CASE A 17 year old boy was admitted at our hospital with a 10 day history of diplopia, giddiness and headache. He also had dry cough, abdominal discomfort and projectile vomiting since 5 days. He was born...
A STUDY OF PREVALENCE OF HYPOTHYROIDISM IN DIABETIC PATIENTS
BACKGROUND Diabetes mellitus (DM) and Thyroid dysfunction (TD) are the two most common endocrine disorders in clinical practice. Unrecognised TD may adversely affect the metabolic control and add more risk to an already...
A CLINICOPATHOLOGICAL STUDY OF LACRIMAL FOSSA LESIONS AT A TERTIARY CARE CENTRE
BACKGROUND Lesions of the lacrimal fossa and gland constitute about 5% - 13% of all orbital masses confirmed by biopsy. The diagnosis, the histopathological correlation and treatment of lacrimal fossa lesions are importa...