Frequência de Escherichia coli e sua sensibilidade aos antimicrobianos em menores de cinco anos hospitalizados por diarreia aguda / The frequency of Escherichia coli and its sensitivity to antimicrobials in children aged under five years admitted to hospital for treatment of acute diarrhea

Determinar a frequência de Escherichia coli diarreiogênica e sua sensibilidade aos antimicrobianos em menores de cinco anos hospitalizados por diarreia aguda. MÉTODOS: estudo prospectivo tipo corte transversal realizado no Instituto de Medicina Integral Prof. Fernando Figueira, entre janeiro de 2010 e fevereiro de 2011. Foram excluídas as crianças com diagnóstico de imunodeficiência ou usando antimicrobianos. Para cada paciente foi feito uma única coleta de swab retal nas primeiras 24 horas de internação. Os patógenos foram identificados na coprocultura e sorotipagem. Os antibiogramas foram obtidos por disco-difusão. RESULTADOS: 140 crianças foram arroladas, em sua maioria provinham de famílias de baixa renda da Região Metropolitana do Recife. Foram isolados 99 microorganismos: 9 (6,4 por cento) E. coli enteropatogênica (EPEC) e 4 (2,9 por cento) E. coli enteroinvasora (EIEC) e 80 (57,1 por cento) outras E.coli não EPEC, não EIEC, 3 (2,1 por cento) Shigella spp e 3 (2,1 por cento) Salmonella spp. O perfil de sensibilidade aos antimicrobianos demonstrou níveis elevados de resistência à ampicilina e sulfametoxazol-trimetoprima. CONCLUSÕES: a baixa frequência de EPEC observada pode estar associada às condições de saneamento básico favoráveis apresentadas pelos pacientes do estudo. A análise local do perfil da sensibilidade da E. coli aos antimicrobianos reforça a recomendação da Organização Mundial de Saúde para o uso racional dessas drogas visando prevenção da resistência bacteriana...

To determine the frequency of diarrheic Escherichia coli and its sensitivity to antimicrobials in children aged under five years admitted to hospital for treatment of acute diarrhea. METHODS: a prospective cross-sectional study was carried out at the Instituto de Medicina Integral Prof. Fernando Figueira, between January 2010 and February 2011. Children were excluded if they had been diagnosed as immunodeficient or were using antimicrobials. A single rectal swab was taken from each patient during the first 24 hours of hospitalization. The pathogens were identified in the coproculture and serotyping. Antibiograms were obtained using disc-diffusion. RESULTS: 140 children were recruited. Most were from low-income families in the Metropolitan Region of Recife. Ninety-nine micro-organisms were isolated: 9 (6.4 percent) enteropathogenic E. coli (EPEC) and 4 (2.9 percent) enteroinvasive E. coli (EIEC) and 80 (57.1 percent) other E.coli that are neither EPEC nor EIEC, 3 (2.1 percent) Shigella spp and 3 (2.1 percent) Salmonella spp. The profile of sensitivity to antimicrobials showed high levels to resistance to ampicillin and sulfametho-xazol-trimetropime. CONCLUSIONS: the low frequency of EPEC found may be associated with basic sanitary conditions among the patients in the study. The local analysis of the profile of sensitivity of E. coli to antimicrobials corroborates the World Health Organization recommendation that these drugs be used prudently to ensure prevention of resistance in bacteria...

[Clinical and microbiological profile of women with bacterial vaginosis]. / Perfil clínico e microbiológico de mulheres com vaginose bacteriana.

PURPOSE: to study the clinical and microbiological profile of women with bacterial vaginosis participating in a randomized, double-blind clinical trial, which compared the vaginal use of preparations from red pepper tree and metronidazole for the treatment of genital discharge. METHODS: the study was conducted on a series of 277 women with bacterial vaginosis concomitantly diagnosed by the criteria of Amsel and Nugent, selected from a total of 462 recruited patients using the information obtained before intervention. Data were analyzed with the Epi-Info 3.32 software. In order to compare the outcomes frequencies between the intervention groups, the chi2 test was used and the risk ratio and 95% confidence interval were calculated. The intention to treat analysis was performed. In addition to the determination of diagnostic parameters, the culture of vaginal content and a Papanicolaou cytology test were also performed. RESULTS: the most frequent clinical complaints were genital discharge, observed in 206 participants (74.4%) and the fish odor of the vaginal secretion, which occurred in 68.6% of the cases (190 patients). Among the diagnostic clinical criteria, the presence of clue-cells was positive in 275 women (99.3%), the Whiff test, in 266 (96.0%), followed by pH >4.5, which occurred in 92.8% of the cases, and by the presence of fluid grayish discharge reported by 206 participants (74.4%). Regarding the Nugent criterion, the median score was 8.0. Culture of the vaginal content permitted the identification of Gardnerella vaginalis in 96.8% of cases and of Mobiluncus in 53.1%. Only one third of the exams showed the presence of Lactobacillus (89 women - 32.1%). Fungal growth occurred in the cultures of 14 participants (5.1%). In most cases, culture revealed the presence of Corynebacterium (94.2%), Gram-positive cocci (98.2%), as well as Gram-positive (99.3%) and Gram-negative (91.0%) bacilli. Oncotic colposcopy revealed a very scarce presence of lactobacilli, which were present in only 8 cytological exams (2.9%) out of the total of 273 exams performed. CONCLUSIONS: the results of the present study did not differ from the literature regarding the symptoms reported by the women, the clinical criteria most frequently observed in the diagnosis, or the bacterial species detected in cultures of vaginal content. These findings indicate the need for further studies that might better elucidate the interrelations between the microbiological findings and the clinical expression of bacterial vaginosis.

Perfil clínico e microbiológico de mulheres com vaginose bacteriana / Clinical and microbiological profile of women with bacterial vaginosis

OBJETIVO: estudar o perfil clínico e microbiológico de mulheres portadoras de vaginose bacteriana participantes de um ensaio clínico randomizado, duplamente mascarado, que comparou aroeira e metronidazol, em uso vaginal, para tratamento do corrimento genital. MÉTODOS: o estudo constitui-se em uma série de casos de 277 mulheres portadoras de vaginose bacteriana diagnosticada, concomitantemente, pelos critérios de Amsel e Nugent, selecionadas a partir de um total de 462 recrutadas, utilizando as informações colhidas antes da intervenção. A análise dos dados foi efetuada utilizando-se o programa Epi-Info 3.32. Para comparar as frequências dos desfechos entre os grupos de intervenção, foi utilizado o teste do χ2 e foi calculada a razão de risco e o intervalo de confiança a 95 por cento. Foi feita análise por intenção de tratar. Além dos parâmetros de diagnósticos, foram também colhidas cultura do conteúdo vaginal e uma citologia de Papanicolaou. RESULTADOS: entre as queixas clínicas, as mais frequentes foram o corrimento genital, observado em 206 participantes (74,4 por cento) e o odor de peixe da secreção vaginal, que ocorreu em 68,6 por cento dos casos (190 pacientes). Dentre os critérios clínicos de diagnósticos, a presença de clue-cells foi positiva em 275 mulheres (99,3 por cento), o teste de Whiff positivo apareceu em 266 participantes (96,0 por cento), seguido do pH >4,5, que ocorreu em 92,8 por cento dos casos e da presença de corrimento fluido e acinzentado, citado por 206 participantes (74,4 por cento). Com relação ao critério de Nugent, a mediana dos escores foi o valor 8,0. As culturas de conteúdo vaginal permitiram a identificação de Gardnerella vaginalis em 96,8 por cento e de Mobiluncus, em 53,1 por cento dos casos. Apenas uma terça parte dos exames mostrou a presença de Lactobacillus (89 mulheres - 32,1 por cento). Houve crescimento de fungos em culturas de 14 participantes (5,1 por cento). Na maior parte dos casos, os ...

PURPOSE: to study the clinical and microbiological profile of women with bacterial vaginosis participating in a randomized, double-blind clinical trial, which compared the vaginal use of preparations from red pepper tree and metronidazole for the treatment of genital discharge. METHODS: the study was conducted on a series of 277 women with bacterial vaginosis concomitantly diagnosed by the criteria of Amsel and Nugent, selected from a total of 462 recruited patients using the information obtained before intervention. Data were analyzed with the Epi-Info 3.32 software. In order to compare the outcomes frequencies between the intervention groups, the χ2 test was used and the risk ratio and 95 percent confidence interval were calculated. The intention to treat analysis was performed. In addition to the determination of diagnostic parameters, the culture of vaginal content and a Papanicolaou cytology test were also performed. RESULTS: the most frequent clinical complaints were genital discharge, observed in 206 participants (74.4 percent) and the fish odor of the vaginal secretion, which occurred in 68.6 percent of the cases (190 patients). Among the diagnostic clinical criteria, the presence of clue-cells was positive in 275 women (99.3 percent), the Whiff test, in 266 (96.0 percent), followed by pH >4.5, which occurred in 92.8 percent of the cases, and by the presence of fluid grayish discharge reported by 206 participants (74.4 percent). Regarding the Nugent criterion, the median score was 8.0. Culture of the vaginal content permitted the identification of Gardnerella vaginalis in 96.8 percent of cases and of Mobiluncus in 53.1 percent. Only one third of the exams showed the presence of Lactobacillus (89 women - 32.1 percent). Fungal growth occurred in the cultures of 14 participants (5.1 percent). In most cases, culture revealed the presence of Corynebacterium (94.2 percent), Gram-positive cocci (98.2 percent), as well as Gram-positive ...