Raji MA, Jamal W, Ojemhen O, Rotimi VO. Point-surveillance of antibiotic resistance in Enterobacteriaceae isolates from patients in a Lagos Teaching Hospital, Nigeria.
J Infect Public Health 2013;
6:431-7. [PMID:
23999335 DOI:
10.1016/j.jiph.2013.05.002]
[Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2013] [Revised: 05/21/2013] [Accepted: 05/24/2013] [Indexed: 11/26/2022] Open
Abstract
OBJECTIVES
This study was carried out to determine a point prevalence of drug resistance and extended-spectrum β-lactamase (ESBL) among members of the family Enterobacteriaceae.
METHODS
Consecutive clinically significant non-repetitive isolates obtained from both hospitalized patients and outpatients' samples were studied. The isolates were identified using VITEK 2 while susceptibility testing was performed against 16 antibiotics using the E-test strips. Phenotypic production of ESBL was detected by E-test ESBL method. Positive isolates were confirmed by PCR.
RESULTS
Of a total of 102 isolates studied, 43 (42.2%) were Escherichia coli and 32 (31.4%) Klebsiella pneumoniae. These isolates demonstrated remarkable high rates of resistance to the β-lactam antibiotics, except the carbapenems and piperacillin-tazobactam. Fifty-two (51%) were resistant to ≥ 3 classes of drugs and 29 (28.4%) to ≥ 5 drugs. Thirty-eight (37.3%) were ESBL producers. Of these, 21 (55.3%) were E. coli and 12 (31.6%) K. pneumoniae. Thus, the overall prevalence of ESBL-producing E. coli was 20.6% and K. pneumoniae 11.8%.
CONCLUSIONS
This study showed an alarmingly high prevalence of antibiotic resistance in invasive Enterobacteriaceae isolates and a high prevalence of ESBL producers in the study center. Antibiotic stewardship and other preventive strategies are recommended to reduce the high rate of resistant bacteria in this hospital.
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