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ORIGINAL ARTICLE
Year : 2020  |  Volume : 6  |  Issue : 1  |  Page : 50-53

Multi-drug resistant gram-negative bacilli in lower respiratory tract infections at IGIMS, Patna: A tertiary care hospital


1 Junior resident, IGIMS, India
2 Professor, IGIMS, India
3 Assistant Professor, IGIMS, India
4 Professor and Head, Dept. of Microbiology, IGIMS, India

Correspondence Address:
Namrata Kumari
Professor, Dept. of Microbiology, IGIMS, Patna
India
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Source of Support: None, Conflict of Interest: None


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Background: Lower respiratory tract infections are among important causes of morbidity and mortality for all age groups. The emergence of multidrug resistant gram-negative organism (MDRO) is an issue of increasing concern. Aims & Objectives: This study was focused on obtaining a comprehensive insight into the microbial profile, its prevalence and the susceptibility patterns of the gram negative bacilli isolates including multi drug resistance in lower respiratory tract infections. Materials and Methods: A total of 1144 respiratory samples (sputum, broncho-alveolar lavage fluid and endotracheal aspirate) were processed for microscopy, culture and susceptibility testing following standard laboratory protocols. Multidrug resistant gram-negative bacilli causing lower respiratory tract infections were studied for their causation of disease. Results: A total of 349 gram-negative pathogens were isolated from respiratory samples during the study period. Among these 213 (61%) gram-negative pathogens were found to be multidrug resistant. Although the percentage of multi drug resistance was higher among Escherichia coli (88% MDRO) and Acinetobacter spp. (80% MDRO), the predominant multidrug resistant gram-negative bacilli isolated were Klebsiella spp. 119 (34%) and Pseudomonas spp. 108 (30%). Among MDROs, other isolates were Citrobacter spp., Enerobacter spp., Proteus spp. and Providentia spp. Conclusion: A large majority of pathogenic gram-negative bacilli isolated were found to be the multidrug resistant. Regular surveillance which directs appropriate empirical therapy and good clinico-microbiological workup of each case of lower respiratory tract infection can reduce the morbidity and mortality associated with MDROs. Bacteriological diagnosis and antibiotic resistance surveillance are indispensible in the effective management of lower respiratory tract infections.


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