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Archives of Clinical Microbiology

  • ISSN: 1989-8436
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Molecular characterization of Carbapenem resistant Enterobacteriaceae from intensive care units of a tertiary care hospital of Islamabad

Annual Conference on MICROBIAL PATHOGENESIS, INFECTIOUS DISEASE, ANTIMICROBIALS AND DRUG RESISTANCE
August 23-24, 2017 | Toronto, Canada

Azka Fatima

Shaheed Zulfiqar Ali Bhutto Medical University, USA

Posters & Accepted Abstracts: Arch Clin Microbiol

Abstract:

Enterobacteriaceae are Gram-negative rods causing serious infections in intensive care units (ICUs) of hospitals. These organisms are showing resistance to several classes of antimicrobials and resistance genes are spreading by acquired plasmids in bacterial population. Resistance to carbapenem group of antimicrobials is an emerging problem for clinicians and surgeons. Isolation, identification and molecular characterization of carbapenem resistant Enterobacteriaceae (CRE) from patients admitted in intensive care units of tertiary care hospital. This research is a prospective, non-randomized, descriptive study. In 9 months, 83 isolates of CRE from ICU samples were processed in Department of Pathology, SZABMU, PIMS Pakistan. Out of 83 CRE samples, 26.5% were from urine, 26.5% were from endotracheal tube tip, 14% were from blood, 13% were from pus, 13% were from tracheal secretions, 4% were from fluids and 3% were from catheter tip. 75% were Klebsiella pnemoniae, 17% were E. coli, 2.25% were Klebsiella specie, 2.25% were Enterobacter agglomerans, 2.25% were Enterobacter cloacae and 1.25% was Klebsiella oxytoca. CRE are 100% resistant to imipenem, meropenem and ertapenem. Tigecycline is the only parental drug which is found effective against CRE isolates. 14.5% of CRE isolates was sensitive to amikacin. MIC of imipenem showed 100% resistance for CRE isolates. NDM gene was present in 28 (56%) samples. VIM gene, KPC gene, IMP gene were not detected. NDM positive isolates were 48% Klebsiella pneumoniae.