A escala Nacional en el ámbito sanitariocomúnmentese presentan infecciones bacterianas E.colicon múltiples factores que encarecen su tratamiento, siendoel objetivoen este trabajodeterminar la influencia de la enzima beta-lactamasa en la resistencia de la bacteria E. coli frente a los antibióticos,reconociendo los antibacterianos de las familias de las penicilinas y cefalosporinas ineficientes en su tratamiento. Basándose en un estudio documental de artículos científicos sobre la temática en estudio se concluye que la presencia de la enzima beta-lactamasas influye en gran medida en laresistencia desarrollada por la bacteria E. coli hacia los antibióticos como las penicilinas y cefalosporinas de primera, segunda, tercera y cuarta generación. Además se determinó que los antibióticos derivados de la penicilina como la ampicilina y los antibióticos de la familia de las cefalosporinas: cefazolina, cefalotina, cefotaxima, cefepime y cefoptaximepor hidrolisis de estas drogas que no ejercen ningún efecto antibacteriano de la E.coli resistente,representando un gran problema que puede aumentar el riesgo de mortalidad del paciente.Recomendando que ante la sospecha de infecciónE. coli,se realice un antibiograma para detectar el tratamiento indicado.ABSTRACTE. coli bacterial infections are frequently present with multiple factors that make their treatment more expensive, in the health field at the national level. The objective of this work is to determine the influence of the beta-lactamase enzyme on E. coli resistance against antibiotics, recognizing the antibacterials from the families of penicillins and cephalosporins inefficient in their treatment. Based on a documentary study of scientific articles on the subject under study, it is conclude that the presence of the enzyme beta-lactamase greatly influences the resistance developed by the bacterium E. coli towards antibiotics such as penicillins and cephalosporins first, second, third and fourth generation. In addition, it was determined that the antibiotics derived from penicillin, such as ampicillin and antibiotics of the cephalosporin family cefazolin, cephalothin, cefotaxime, cefepime and cefoptaxime by hydrolysis of these drugs, do not exert any antibacterial effect of resistant E. coli, representing a big problem that may increase the risk of patient mortality. It is recommended that, in case of suspected E. coli infection, an antibiogram be performed to detect the indicated treatment.
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