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Patrones de susceptibilidad antimicrobiana de bacterias gramnegativas aisladas de infecciones del tracto urinario en Venezuela: Resultados del estudio SMART 2009-2012 / Antimicrobial susceptibility patterns of Gram-negative bacteria isolated in urinary tract infections in Venezuela: Results of the SMART study 2009-2012
Guevara, Napoleón; Guzmán, Manuel; Merentes, Altagracia; Rizzi, Adele; Papaptzikos, Juana; Rivero, Narlesky; Oranges, Carmela; Vlllarroel, Héctor; Limas, Yoxsivell.
  • Guevara, Napoleón; Centro Médico de Caracas. VE
  • Guzmán, Manuel; Centro Médico de Caracas. VE
  • Merentes, Altagracia; Centro Médico de Caracas. VE
  • Rizzi, Adele; Centro Médico de Caracas. VE
  • Papaptzikos, Juana; Centro Médico de Caracas. VE
  • Rivero, Narlesky; Centro Médico de Caracas. VE
  • Oranges, Carmela; Centro Médico de Caracas. VE
  • Vlllarroel, Héctor; Centro Médico de Caracas. VE
  • Limas, Yoxsivell; Centro Médico de Caracas. VE
Rev. chil. infectol ; 32(6): 639-648, graf, tab
Article in Spanish | LILACS | ID: lil-773270
ABSTRACT

Introduction:

Antimicrobial resistance of pathogens causing urinary tract infection (UTI) is a growing problem, which complicates their effective treatment. Surveillance is needed to guide appropriate empiric therapy.

Aim:

to describe the susceptibility patterns of Gram-negative bacteria isolated of patients with UTI to twelve antibiotics as part of the Study for Monitoring Antimicrobial Resistance Trends in Venezuela. Materials and

Methods:

Between 2009-2012 a total of 472 Gram-negative bacteria were isolated from hospitalized patients with UTI. The isolates were sent to Central Laboratory (Central Laboratory of International Health Management Associates) to confirm their identification, and to make susceptibility testing as recommended by the Clinical and Laboratory Standards Institute. Enterobacteriacea comprised 96.6% of the total, where Escherichia coli (76.9%) and Klebsiellapneu-moniae (10.6%) were the most frequent. Extended-spectrum β-lactamases (ESBL) was detected in 21.6% of isolates. Top antimicrobial activity were ertapenem, imipenem, and amikacin (> 90.0%), slightly lower for amikacin (85.1%) in ESBL-producing strains. Resistance rates to fluoroquinolones and ampicillin/sulbactam were high (40 y 64%, respectively).

Conclusions:

These data suggest a necessary revision of the therapeutic regimens for the empirical treatment of UTI in Venezuela.
RESUMEN

Introducción:

La resistencia antimicrobiana de patógenos causantes de infecciones del tracto urinario (ITU) es un problema creciente, que complica su tratamiento efectivo. La vigilancia es necesaria para orientar la terapia empírica apropiada.

Objetivo:

Documentar los patrones de susceptibilidad de bacterias gramnegativas aisladas de pacientes con ITU a doce antimicrobianos como parte del Estudio de Monitoreo de Patrones de Resistencia en Venezuela (SMART). Materiales y

Métodos:

Entre 2009-2012, un total de 472 bacterias gramnegativas fueron aisladas de pacientes hospitalizados con ITU. Los aislados fueron enviados a un Laboratorio Central (Central Laboratory of International Health Management Associates) para confirmar su identificación y realizar pruebas de susceptibilidad según recomendaciones del Instituto de Estándares Clínicos y de Laboratorio.

Resultados:

Enterobacteriacea comprendió 96,6% del total, donde Escherichia coli (76,9%) y Klebsiela pneumoniae (10,6%) fueron las más frecuentes. En 21,6% de los aislados fueron detectadas β-lactamasas de espectro extendido (BLEE). Los antimicrobianos con mejor actividad fueron ertapenem, imipenem y amikacina (> 90,0%); ligeramente menor para amikacina (85,1%) en cepas productoras de BLEE. Las tasas de resistencia a quinolonas y ampicilina/ sulbactam fueron elevadas (40 y 64%, respectivamente).

Conclusiones:

Estos datos sugieren una necesaria revisión de los esquemas terapéuticos para el tratamiento empírico de las ITU en Venezuela.
Subject(s)


Full text: Available Index: LILACS (Americas) Main subject: Urinary Tract Infections / Gram-Negative Bacterial Infections / Gram-Negative Bacteria / Anti-Bacterial Agents Type of study: Practice guideline Limits: Adolescent / Adult / Aged / Aged80 / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: South America / Venezuela Language: Spanish Journal: Rev. chil. infectol Journal subject: Communicable Diseases Year: 2015 Type: Article Affiliation country: Venezuela Institution/Affiliation country: Centro Médico de Caracas/VE

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Full text: Available Index: LILACS (Americas) Main subject: Urinary Tract Infections / Gram-Negative Bacterial Infections / Gram-Negative Bacteria / Anti-Bacterial Agents Type of study: Practice guideline Limits: Adolescent / Adult / Aged / Aged80 / Child / Child, preschool / Female / Humans / Infant / Male Country/Region as subject: South America / Venezuela Language: Spanish Journal: Rev. chil. infectol Journal subject: Communicable Diseases Year: 2015 Type: Article Affiliation country: Venezuela Institution/Affiliation country: Centro Médico de Caracas/VE