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• W3191283940 abstract "Introduction. The emergence of multiresistant enterobacteria producing extendedspectrum beta-lactamase (ESBL) in outpatients with urinary tract infections represents a public health problem in Perú. Objectives. To characterize multiresistant enterobacteria isolated from patients diagnosed with urinary tract infection in two Peruvian jungle departments using molecular techniques. Materials and methods. We conducted a descriptive, observational, and retrospective study of 61 urine culture isolates from two departments in the Peruvian jungle during 2017-2018. Resistance profiles were identified using the MicroScan™ automated system and a conventional polymerase chain reaction (PCR) was used for the detection of blaCTX-M, blaTEM and blaSHV genes. Results. The most common positive ESBL enterobacteria for each department were Escherichia coli in Madre de Dios (10/40; 25%) and Ucayali (16/21; 76.2%). Gene blaCTX-M was the most prevalent in both departments (25/61; 41%), followed by blaTEM (15/61; 24.6%), and blaSHV (10/61; 16.4%). As for the antimicrobial susceptibility profile, we detected resistance levels of 72.6% for ampicillin, 82.3% for cephalothin, and 88.7% for nitrofurantoin. Conclusions. BLEE-producing multi-resistant enterobacteria strains in both departments were 57.4% and blaCTX-M was the most common gene.Introducción. La aparición de enterobacterias multirresistentes y productoras de betalactamasas de espectro extendido (BLEE) en pacientes de consulta externa con infecciones urinarias, representa un problema de salud pública en Perú. Objetivos. Caracterizar molecularmente enterobacterias multirresistentes aisladas de pacientes con diagnóstico de infección urinaria y procedentes de dos departamentos de la selva peruana. Materiales y métodos. Se hizo un estudio descriptivo, observacional y retrospectivo de 61 aislamientos de urocultivo procedentes de la selva peruana durante 2017 y 2018. Los perfiles de resistencia se identificaron utilizando el sistema automatizado MicroScan™ y para la detección de los genes blaTEM, blaCTX-M, blaSHV se empleó una reacción en cadena de la polimerasa (PCR) convencional. Resultados. Las enterobacterias positivas para BLEE más frecuentes por departamento fueron Escherichia coli en Madre de Dios (25 %, 10/40) y Ucayali (76,2 %, 16/21). En ambos departamentos, el gen blaCTX-M fue el más frecuente (25/61; 41 %), seguido por blaTEM (15/61; 24,6 %) y blaSHV (10/61; 16,4 %). En el perfil de sensibilidad antimicrobiana, se detectó 72,6 % de resistencia contra ampicilina, 82,3 % contra cefalotina y 88,7 % contra nitrofurantoína. Conclusiones. El porcentaje de cepas de enterobacterias multirresistentes productoras de BLEE en ambos departamentos fue del 57,4 % y el gen bla CTX-M fue el más frecuente." @default.
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• W3191283940 date "2021-10-15" @default.
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• W3191283940 title "Caracterización molecular de enterobacterias multirresistentes en dos departamentos de la selva peruana" @default.
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• W3191283940 doi "https://doi.org/10.7705/biomedica.5720" @default.
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