Performance of CBNAAT on Pleural Biopsies Obtained by Semirigid Thoracoscopy for Diagnosis of Unexplained Pleural Effusion: A Prospective Study from North India.

BACKGROUND: Exudative pleural effusions are commonly encountered in clinical practice, but in about one-fourth of cases, etiology remains elusive after initial evaluation. Medical thoracoscopy with semirigid thoracoscope is a minimally invasive procedure with high diagnostic yield for diagnosing pleural diseases, especially these undiagnosed exudative pleural effusions. In tubercular endemic areas, often, these effusions turn out to be tubercular, but the diagnosis of tubercular pleural effusion is quite challenging due to the paucibacillary nature of the disease. Although culture is the gold standard, it is time-consuming. Cartridge-based nucleic acid amplification test (CBNAAT) is a novel rapid diagnostic test for tuberculosis (TB) and has been recommended as the initial diagnostic test in patients suspected of having extrapulmonary TB (EPTB). MATERIALS AND METHODS: We conducted a prospective observational study of 50 patients with undiagnosed pleural effusion admitted to our tertiary care hospital. The primary aim of the study is to evaluate the diagnostic performance of CBNAAT on thoracoscopic guided pleural biopsy and compare it with conventional diagnostic techniques like histopathology and conventional culture. RESULTS: Of 50 undiagnosed pleural effusions, TB (50%) was the most common etiology. The overall diagnostic yield of semirigid thoracoscopy in this study was 74%. Our study showed that CBNAAT of pleural biopsies had a sensitivity of 36% only but a specificity of 100%. The sensitivity of CBNAAT was not far superior to the conventional culture. CONCLUSION: Tuberculosis (TB) is a common cause of undiagnosed pleural effusion in our set-up. CBNAAT testing of pleural biopsy, though, is a poor rule-out test for pleural TB, but it may aid in the early diagnosis of such patients.

Cancer in Kashmir Valley: Current trends, burden and pattern.

BACKGROUND: There is an overall surge of malignancies in most of the developing countries including India. Dearth of data from Kashmir prompted us to embark upon a study on burden and pattern of cancer in Kashmir over previous 5 years. METHODS: Data acquisition from January 2016 to December 2020 was accomplished from the departmental archives of a large tertiary care institute of Kashmir valley. All histologically proven malignant cases were included for the present study. Information regarding the age, gender, site of primary malignancy and histological diagnosis was obtained. RESULTS: A total of 5,392 cases of malignancies were considered for final analysis with a mean age at diagnosis of 56.73 years (SD = 15.96). Maximum number of cases were recorded in the age group of 60-69 years. Maximum number of malignancies were encountered in year 2018 with substantial drop in subsequent years. Gastrointestinal malignancies constitute more than one-third of total number of malignancies across both genders. In males, stomach was the common site of malignancy followed by lung and colorectal region whereas in females most common sites were breast, colorectal, and stomach. CONCLUSION: This study portrays close reflection of the cancer patterns within the valley in recent years which is strikingly different from rest of the country and world.