Presencia de streptococcus beta hemolítico del grupo B en embarazadas de 35 a 37 a 37 semanas de gestación atendidos en el Hospital Gineco-Obstétrico Isidro Ayora Quito, 2012 - 2013.
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2014
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Universidad de Guayaquil. Facultad de Ciencias Médicas. Escuela de Graduados
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El presente estudio se realizó en 138 pacientes, con el objetivo dedeterminar la presencia de Streptococcus beta hemolítico del grupo B en embarazos de 35 a 37 semanas atendidos en la consulta externa prenatal del Hospital Gíneco Obstétrico Isidro Ayora de Quito entre noviembre del 2012 a julio del 2013, en un estudio observacional prospectivo. Se tomaron muestras de secreción vaginal e hisopado ano rectal. Las muestras fueron cultivadas en placas con agar sangre de cordero al 5%. Para la identificación del EGB se realizó prueba catalasa, STX, bacitracina, de CAMP y latex aglutinación, posteriormente se realizó pruebas de susceptibilidad a los antibióticos. Se encontró que la colonización positiva para EGB fue en 6 pacientes (4.35 %), de las cuales se estableció que el sitio más frecuente fue en la región vaginal con un 83,33% (cinco pacientes) y un 16,67 % en ambos sitios (una paciente) en edades comprendidas entre 36 y 49 años, en raza mestiza, multigestas y con dos y tres partos previos. En cuanto a la susceptibilidad a los antibióticos de las 6 muestras positivas para EGB fueron del 100% para penicilina, en cuanto para clindamicina y eritromicina se obtuvo 66.67% respectivamente.
PALABRAS CLAVE: Colonización, Quito, región vaginal y ano rectal, Streptococcus beta hemolítico del Grupo B (EGB).
The present study was carried out with 138 patients with the objective of determine the presence of Beta Hemolytic Streptococcus of group B in pregnancies from 35 to 37 weeks, who were looked after at the prenatal of the “Hospital Gíneco Obstetric Isidro Ayora de Quito” from November 2012 to July 2013 in a prospective observational study. Vaginal secretion and anorectal swabbing samples were taken. The samples were cultured on plates with lamb blood agar to 5%. For the identification of EGB catalase test, STX, bacitracin, of CAMP, and latex agglutination was carried out; later susceptibility testing to antibiotics was performed. It was found that the positive colonization for EGB was in 6 patients (4.35%), which it was established that the most common site was in the vaginal region with 83,33% (five patients) and a 16,67% at both sites (one patient) aged between 36 and 49 years, in mixed race, multiple pregnancy and with two and three previous births. Regarding the antibiotic susceptibility, of the 6 positive samples for EGB was of 100% to penicillin, as regards clindamycin and erythromycin was obtained 66.67% respectively.
The present study was carried out with 138 patients with the objective of determine the presence of Beta Hemolytic Streptococcus of group B in pregnancies from 35 to 37 weeks, who were looked after at the prenatal of the “Hospital Gíneco Obstetric Isidro Ayora de Quito” from November 2012 to July 2013 in a prospective observational study. Vaginal secretion and anorectal swabbing samples were taken. The samples were cultured on plates with lamb blood agar to 5%. For the identification of EGB catalase test, STX, bacitracin, of CAMP, and latex agglutination was carried out; later susceptibility testing to antibiotics was performed. It was found that the positive colonization for EGB was in 6 patients (4.35%), which it was established that the most common site was in the vaginal region with 83,33% (five patients) and a 16,67% at both sites (one patient) aged between 36 and 49 years, in mixed race, multiple pregnancy and with two and three previous births. Regarding the antibiotic susceptibility, of the 6 positive samples for EGB was of 100% to penicillin, as regards clindamycin and erythromycin was obtained 66.67% respectively.
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Streptococcus beta hemolítico del Grupo B (EGB), Embarazo, Hospital Gineco-Obstétrico Isidro Ayora, Cantón Quito, Ecuador