title: Antibiotic susceptibility pattern in urinary isolates of gram negative bacilli with special reference to AmpC β-lactamase in a tertiary care hospital.
abstract: BACKGROUND
  Resistance to higher antimicrobial agent is commonly seen in gram negative bacilli. This issue is a challenging problem to the medical practitioners in addition to it is financial impact on the health care system.
  
  
  OBJECTIVE
  To document the prevalence of multi drug resistant gram negative bacilli isolated from urine of patients attending the Urology Department of Tertiary care Hospital of western India in year 2008.
  
  
  RESULTS
  Out of total 328 isolates, 118 (35.98%) E.coli, 72 (21.95 %) Klebsiella, 64 (19.51%) Pseudomonas aeruginosa, 30 (9.15%) Acinetobacter, 18 (5.49%) Proteus vulgaris, 18 (5.49%) Proteus mirabilis, 6 (1.83%) Providencia rettgerii, 2 (0.61%) Citrobacter freundii. Out of these isolates, 228 (69.51%) were β-lactamase positive, while 100 (30.51%) were β-lactamase negative. Out of 228 β-lactamase positive, 104 (45.61%) were AmpC β-lactamase positive.
  
  
  CONCLUSIONS
  Stringent protocol such as Antibiotic policy and Hospital infection control program are mandatory to curb these microbes in a tertiary care hospital.
authors.affiliation: Department of Microbiology, B J Medical College, Ahmedabad-380 016, India. drmitesh_76@yahoo.co.in
authors.forename: Mitesh H
authors.initials: MH
authors.lastname: Patel
authors.forename: Grishma R
authors.initials: GR
authors.lastname: Trivedi
authors.forename: Sachin M
authors.initials: SM
authors.lastname: Patel
authors.forename: Mahendra M
authors.initials: MM
authors.lastname: Vegad