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Centro de Investigaciones Regionales Dr. Hideyo Noguchi, Universidad Autónoma de Yucatán

2000, Number 3

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Rev Biomed 2000; 11 (3)

Antimicrobial susceptibility pattern of Gram negative bacterias isolated from enteral feeding

Arias ML, Monge R, Artavia J, González P

Language: English
References: 22
Page: 169-174
PDF size: 28.77 Kb.


ABSTRACT

Introduction: Contaminated enteral feeding solutions represent a risk for the development of patients’ and nosocomial infections. The aim of this study was to identify 75 Gram negative rod strains isolated from enteral feeding solutions distributed in three Costa Rican hospitalary centers and evaluate their antimicrobial susceptibility patterns.
Material and methods. Two different techniques were used for this purpose, the Kirby-Bauer modified technique and the ATB antibiogram technique (Biomériaux®)
Results. From the samples analyzed, the predominant groups corresponded to Aeromonas sp., (22,7%), Klebsiella sp. and Proteus sp. (18,7% each one) and Enterobacter sp. (4%). According to the antimicrobial susceptibility patterns obtained using the modified Kirby-Bauer technique, 36% of the strains showed resistance to amoxycillin-clavulanic acid, 25,3% to cefaclor and 14,7% to cefuroxime. All strains were sensible to imipenem and ciprofloxacin. Using the ATB antibiogram methodology, bacteria showed resistance to amoxycillin (74,6%), amoxycillinclavulanic acid (34,6%), ticarcillin-cefalotine (22,6%) and piperacillin (2,6%). All strains were sensible to the other ten antibiotics evaluated.
Conclusions. It is urgent to assure strict hygiene during the preparation and handling of enteral feeding solutions used at hospitals, so that they do not become a potential source of resistant bacteria that can limit the recovery of patients.


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