Impact of empirical treatment in patients with extrapulmonary tuberculosis and their outcome

Abstract

Background: Tuberculosis (TB), primarily caused by mycobacterium tuberculosis (Mtb), remains a significant public health concern globally, particularly in low-resource settings. Extrapulmonary tuberculosis (EPTB), which affects organs beyond the lungs, presents diagnostic and treatment challenges, necessitating improved clinical management strategies. This work was aimed to assess the impact of empirical anti-TB treatment on the outcomes of patients with extrapulmonary tuberculosis and to analyze the demographic and risk factors associated with EPTB. Methods: A retrospective cohort study was conducted over three years (2020–2023) at PSG Hospitals, Coimbatore. Ninety-two subjects, all with negative microbiological results but symptoms indicative of EPTB, were carefully selected. Results: A total of 92 patients were included in the study, all of whom had negative microbiological diagnosis with symptoms suggestive of EPTB. The mean age of patients was 58.14 years, with a male predominance (59.78%). Pleural effusion was the most common EPTB site, with many patients having no co-morbidities. Occupational factors, such as cotton millwork, and lifestyle factors, including alcohol use and malnutrition, were prominent risk factors. Clinical manifestations varied, with fever being the most common symptom. Treatment completion was 65.22%, falling below National Tuberculosis Elimination Program (NTEP) guidelines, with notable loss to follow-up and mortality rates. Conclusion: Empirical treatment for EPTB showed notable improvement in the patient's symptoms and overall health. However, challenges persist in treatment completion, especially among socioeconomically disadvantaged populations. Early detection, prompt treatment initiation, and comprehensive management are essential to address the multifaceted challenges posed by EPTB effectively.