Wednesday, July 20, 2022

Antibiogram and Biofilm Development among Klebsiella pneumoniae from Clinical Isolates



Antibiogram and Biofilm Development among Klebsiella pneumoniae from Clinical Isolates

Subash Paudel1, Laxmi Parajuli1, Prashanna Adhikari1, Sanjay Singh K.C.2, Upendra Thapa Shrestha3, Pradeep Kumar Shah1*

1Department of Microbiology, Tri-Chandra Multiple Campus, Kathmandu, Nepal

2Department of Microbiology, SahidGangalal National Heart Center, Kathmandu, Nepal

3Central Department of Microbiology, Kathmandu, Nepal

 

*Corresponding author: Pradeep Kumar Shah; Department of Microbiology, Tri-Chandra Multiple Campus, Tribhuvan University, Kathmandu, Nepal. Email: pkshah210@gmail.com

 

ABSTRACT

Objectives: This study was aimed to evaluate antibiotic resistance pattern and biofilm formation in K. pneumoniae strains isolated from different clinical specimens and to study on association of drug resistance pattern with biofilm formation.

Methods: A total of 944 clinical samples from patients attending Sahid Gangalal National Heart Center were processed from September 2019 to March 2020 to identify possible bacterial pathogens following standard microbiological procedures. K. pneumonaie isolates were further subjected to antibiotic susceptibility testing using modified Kirby Bauer disc diffusion technique. Biofilm formation was evaluated by tissue culture plate technique.

Results: Of the total 944 samples, 146 (15.47%) samples showed bacterial growth, among which 35 (23.97%) were K. pneumoniae. Out of 35 K. pneumoniae isolates, 16 (45.71%) were multidrug-resistant and 15 (42.86%) were extensively drug-resistant. Twenty-one (60%) K. pneumoniae feebly produced biofilm. Significant association was observed between biofilm production and exhibition of multidrug resistance (p < 0.05).

Conclusion: Prevalence of antibiotics resistant K. pneumoniae in hospital setting is high and alarming. Significant association between drug resistance pattern and biofilm production implicates need of an immediate response to limit growth and spread of drug resistant microbes in clinical settings.

 

Keywords: Kleibsella pneumoniae, multidrug resistance, biofilm, antibiotic susceptibility test, Nepal

 

Citation: Paudel et al. Antibiogram and Biofilm Development among Klebsiella pneumoniae from Clinical Isolates. 2021, TUJM 8(1): 83-92. DOI: https://doi.org/10.3126/tujm.v8i1.41198

 

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