Title: Detection of Metallo-β-lactamase producing gene (bla VIM) among gram negative non-fermenting bacteria causing wound infection in patients attending a tertiary care hospital in Kolkata

Authors: Priyanka Chakrabarty, Ushnish Chakrabarty

 DOI: https://dx.doi.org/10.18535/jmscr/v8i2.59

Abstract

The introduction of Carbapenems into clinical practice represented a great advance for the treatment of serious bacterial infection caused by β- lactam resistant bacteria. Carbapenem resistance has been observed more commonly in non-fermenters such as Pseudomonas and Acinetobacter species. The common form of resistance is through lack of drug penetration i.e. porin mutations and efflux pumps and for carbapenem –hydrolysing β-lactamases. Acquired MBL have recently emerged as one of the most worrisome resistance mechanisms owing to their capacity to hydrolyse all β-lactams including carbapenems.  Hence, in this study we tried to find out the prevalence of metallo- β- lactamase producing gene (blaVIM ) among non fermenting gram negative bacilli causing wound infections from the pus samples received in the Department of Microbiology; Medical College, Kolkata over a period of one year. We found the prevalence to be 7.36%.

References

  1. Ambler RP.1980.The structure of β lactamases. Philos Trans R Soc London Biol.289:321-331.
  2. Clinical and Laboratory Standards Institute. Performance standards for antimicrobial disk susceptibility tests, twenty fourth Informational supplement (M100-S24), 2014.
  3. Pondei K, Fente BG, Oladapo O. Current Microbial Isolates from Wound Swabs, Their Culture and Sensitivity Pattern at the Niger Delta University Teaching Hospital, Okolobiri, Nigeria. Tropical Medicine and Health. 2013;41(2):49-53. doi:10.2149/tmh.2012-14.
  4. Rashid, A., Chowdhury, A., Rahman, S.H.Z., Begum, S.A. and Muazzam, N. (2007) Infections by Pseudomonas aeruginosa and Antibiotic Resistance Pattern of the Isolates from Dhaka Medical College Hospital. Bangladesh Journal of Medical Microbiology, 1, 48-51.
  5. Sule A, Thanni L, Sule-Odu O, Olusanya O. Bacterial pathogens associated with infected wounds in Ogun state university teaching hospital, Sagamu, Nigeria. Afr J Clin Exp Microbiol 2002;3:13-16.
  6. Mehta M, Dutta P, Gupta V. Bacterial isolates from burn wound infections and their antibiograms: A eight-year study. Indian J Plast Surg 2007;40:25-8
  7. Altoparlak U, Aktas F, Celebi D, Ozkurt Z, Akcay MN. Prevalence of metallo-β-lactamase among Pseudomonas aeruginosa and Acinetobacter baumannii isolated from burn wounds and in vitro activities of antibiotic combinations against these isolates. Burns. 2005;31:707–10.
  8. Ionescu MI, Neagoe DS, Chiorean C, Dumitras L, Rus A. Carbapenem Resistance in Non-Fermentative Bacterial Species and in Enterobacteriaceae Isolates from Hospitalized Patients in Different Health-Care Settings. Clujul Medical. 2014;87(4):235-241. doi:10.15386/cjmed-282.
  9. Fallah F, Borhan RS, Hashemi A. Detection of bla(IMP) and bla(VIM) metallo-β-lactamases genes among Pseudomonas aeruginosa strains. International Journal of Burns and Trauma. 2013;3(2):122-124.
  10. Yousefi S, Farajnia S, Nahaei MR, Akhi MT, Ghotaslou R, Soroush MH, Naghili B, Jazani NH. Detection of metallo-β-lactamase-encoding genes among clinical isolates of Pseudomonas aeruginosa in northwest of Iran. Diagn Microbiol Infect Dis. 2010 Nov;68:322–5.

Corresponding Author

Ushnish Chakrabarty

Department of CTVS, Medical College & Hospital, Kolkata