Abstract
PurposeThere is a dearth of data on epidemiology, diagnosis and management of slow growing non tuberculous mycobacteria(NTM) in India, despite being a TB endemic country. This study aims to describe the geographic distribution, risk factors, and the challenges in management of slow growing NTM causing pulmonary infections. MethodsOver a period of 3 years, all slow growing NTM received from pulmonary specimens at a tertiary care centre were further studied from electronic hospital records to correlate non tuberculous mycobacteria species with demographics, geographic location, describe comorbidities including immunosuppression, radiologic findings and treatment regimes. ResultsM.intracellullare was found in the majority of isolates with significant geographic variation and M.simiae the second commonest found exclusively in southern states. Common comorbidities included a previous history of treatment for tuberculosis, structural lung disease as well as systemic risk factors. Disseminated disease only occurred in immunocompromised hosts as was expected, but at a high rate of 44%. Treatment completion and outcomes were difficult to attain in our population. ConclusionThe burden of NTM infection and its management in India remain a challenge. Ensuring it is made a notifiable disease may improve the current situation.
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