2010, Number 93
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Rev Enfer Infec Pediatr 2010; 23.24 (93)
Antimicrobial susceptibility in a neonatal intensive care unit: experience of 43 months
Mendoza TLA, Arias GMD
Language: Spanish
References: 43
Page: 13-24
PDF size: 333.18 Kb.
ABSTRACT
Objective: to evaluate the etiology of extra (IEH) and nosocomial (IIH) and the antibiotic susceptibility of microorganisms isolated from patients in a Neonatal Intensive Care Unit.
Patients and methods: prospective study in 75 isolates. The susceptibility of strains was identified by MicroScan 4 (Dade Berihng) and confirmed with standard discs specific. We calculated rates for each 100 admissions and analyzed the susceptibility and resistance to different bacterial groups.
Results: the incidence of IEH was 2.1% and 1.5% for the IIH. Among all IEH and IIH were predominant Gram-negative bacteria such as
Escherichia coli, and
Klebsiella pneumoniae.
Streptococcus and
Listeria monocytogenes (Gram-positive bacteria) were the most responsible for IEH, while the mainly microorganism isolated was coagulase-negative Staphylococci from nosocomial infections. Among the IEH is highly resistant to ampicillin by
Escherichia (71.0%) and
Klebsiella (60.0%), while gentamicin was 23.0% and 40.0% respectively. In IIH,
Escherichia and
Klebsiella have a sensitivity of less than 30.0% to ampicillin, cefotaxime sensitive for 42.9% of
Escherichia and 16.7% of
Klebsiella, sensitive to cefepime 33.3% of
Escherichia and 14.3% of
Klebsiella. At 100% of meropenem
Escherichia sensitive and 80.0% of
Klebsiella, while amikacin and piperacillin-tazobactan shows better coverage (100% and
Klebsiella, Eschercichia, 87.5% susceptibility).
Conclusions: the high resistance of microorganisms isolated outpatient and inpatient and variety of patterns identified, confirms the emergence of this problem in the institution concerned.
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