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Tiempo de excreción fecal de Escherichia coliproductora de toxina Shiga en niños con síndrome urémico hemolítico / Duration of fecal shedding of Shiga toxin-producing Escherichia coli among children with hemolytic uremic syndrome
Lucarelli, Lucas I; Alconcher, Laura F; Arias, Verónica; Galavotti, Jimena.
Affiliation
  • Lucarelli, Lucas I; Hospital Interzonal Dr. José Penna. Bahía Blanca. AR
  • Alconcher, Laura F; Hospital Interzonal Dr. José Penna. Bahía Blanca. AR
  • Arias, Verónica; Hospital Interzonal Dr. José Penna. Bahía Blanca. AR
  • Galavotti, Jimena; Hospital Interzonal Dr. José Penna. Bahía Blanca. AR
Arch. argent. pediatr ; 119(1): 39-43, feb. 2021. ilus
Article in English, Spanish | LILACS, BINACIS | ID: biblio-1147083
Responsible library: AR94.1
RESUMEN
Introducción. Conocer el tiempo de excreción fecal de Escherichia coli productora de toxina Shiga (Shiga toxin-producing Escherichia coli; STEC, por sus siglas en inglés) en pacientes con síndrome urémico hemolítico sería útil para controlar la transmisión de la enfermedad.Objetivos. 1) Analizar las características del tiempo de excreción de STEC. 2) Evaluar la asociación con las variables sexo, edad, necesidad de diálisis, antibióticos y serotipos de STEC.Población y métodos. Estudio prospectivo, observacional, longitudinal y analítico. Período 2013-2019. Se realizaron coprocultivos al ingresar y cada 5-7 días hasta obtener 2 negativos. Se definió tiempo de excreción desde el inicio de la diarrea hasta el primer negativo. Se confirmó STEC por detección de los genes stx1, stx2 y rfbO157 por reacción en cadena de la polimerasa. Se calculó la media (IC 95 %) y percentilos del tiempo de excreción de STEC, y se compararon las variables estudiadas mediante el test de t.Resultados. Se incluyeron 43 pacientes. La media de tiempo de excreción fue 10,2 días (IC 95 % 8,92-11,59), rango 3-22 días. El 90 % de los pacientes negativizaron el coprocultivo a los 15 días. No hubo diferencias según sexo (p = 0,419), edad (p = 0,937), necesidad de diálisis (p = 0,917), antibióticos (p = 0,147) ni serotipos (p = 0,231).Conclusión. El 90 % de los pacientes negativizó el coprocultivo a los 15 días del inicio de la diarrea, y todos, al día 22. No se encontró asociación entre el tiempo de excreción y las variables estudiadas.
ABSTRACT
Introduction. Knowing the duration of fecal shedding of Shiga toxin-producing Escherichia coli(STEC) among patients with hemolytic uremic syndrome would be useful to control disease transmission.Objectives. 1) To analyze the characteristics of STEC shedding duration. 2) To assess the association with sex, age, need of dialysis, antibiotics, and STEC serotypes.Population and methods. Prospective, observational, longitudinal, and analytical study in the 2013-2019 period. Stool cultures were done upon admission and every 5-7 days until 2 negative results were obtained. Shedding duration was defined as the period from diarrhea onset to the first negative result. STEC was confirmed with polymerase chain reaction detection of stx1, stx2, and rfbO157 genes. The mean (95 % CI) and percentile values of the STEC shedding duration were estimated, and the studied outcome measures were compared using the t test.Results. A total of 43 patients were included. The mean duration of shedding was 10.2 days (95 % CI 8.92-11.59), range 3-22 days. After 15 days, 90 % of patients had a negative stool culture. There were no differences in terms of sex (p = 0.419), age (p = 0.937), need of dialysis (p = 0.917), antibiotics (p = 0.147) or serotype (p = 0.231).Conclusion. Fifteen days after the onset of diarrhea, 90 % of patients had a negative stool culture, and all patients had one after 22 days. No association was observed between the duration of shedding and studied outcome measures.
Subject(s)


Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being / Neglected Diseases Health problem: Target 3.3: End transmission of communicable diseases / Diarrhea / Neglected Diseases / Zoonoses Database: BINACIS / LILACS Main subject: Enterohemorrhagic Escherichia coli / Bacterial Shedding Type of study: Observational study / Risk factors Limits: Female / Humans / Infant / Male Country/Region as subject: South America / Argentina Language: English / Spanish Journal: Arch. argent. pediatr Journal subject: Pediatrics Year: 2021 Document type: Article Affiliation country: Argentina Institution/Affiliation country: Hospital Interzonal Dr. José Penna/AR

Full text: Available Collection: International databases Health context: SDG3 - Health and Well-Being / Neglected Diseases Health problem: Target 3.3: End transmission of communicable diseases / Diarrhea / Neglected Diseases / Zoonoses Database: BINACIS / LILACS Main subject: Enterohemorrhagic Escherichia coli / Bacterial Shedding Type of study: Observational study / Risk factors Limits: Female / Humans / Infant / Male Country/Region as subject: South America / Argentina Language: English / Spanish Journal: Arch. argent. pediatr Journal subject: Pediatrics Year: 2021 Document type: Article Affiliation country: Argentina Institution/Affiliation country: Hospital Interzonal Dr. José Penna/AR
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