[Factors associated with bacteriuria after indwelling urethral catheterization in gynecologic surgery]. / Fatores associados à bacteriúria após sondagem vesical na cirurgia ginecológica.

OBJECTIVES: To determine the frequency and risk factors associated to bacteriuria after urinary catheterization in women submitted to elective gynecological surgery. METHODS: A cohort study was carried out among women submitted to gynecological surgery after urinary catheterization. This study took place at the 'Instituto de Medicina Integral Professor Fernando Figueira' from January to May of 2007. Uroculture samples were collected during two periods: in the first 24 hours and seven to ten days after catheter removal. To demonstrate the association between risk factors and bacteriuria, the relative risk was calculated with a confidence interval of 95%. RESULTS: This study included 249 women. At 24 hours after catheter removal, 23.6% of the urocultures collected were positive, while on days 7 to 10 this was reduced to 11.1%. Of all participants studied only 2.4% had symptomatic bacteriuria. Risk of bacteriuria at 7/10 days was reduced when the patient reported a positive history of treatment for vulvovaginitis in the previous three months. However this association was not found after multivariate analysis. There was no significant association with age, education, stage of reproductive phase, number of pregnancies and deliveries, type and duration of surgery, type of anesthetics, use of prophylactic antibiotic, professional who introduced the catheter and time of urinary catheterization. CONCLUSION: Frequency of bacteriruria was 23.6% at 24 hours and 11.1% seven days after catheter removal. There was no association between bacteriuria at 7/10 days and any of the variables analyzed.

Perfil dos microrganismos isolados no trato urinário após sondagem vesical em cirurgia ginecológica / Profile of microorganisms found in urocultures after urinary catheterization in patients undergoing elective gynecological surgery

OBJETIVOS: determinar os microrganismosfreqüentemente encontrados nas uroculturas apóssondagem vesical e o perfil de sensibilidade aos antibióticos em mulheres submetidas a cirurgia ginecológica eletiva. MÉTODOS: estudo de corte transversal em mulheres submetidas a cirurgia ginecológica com sondagem vesical, no Instituto de Medicina Integral Professor Fernando Figueira (IMIP), em Recife, Pernambuco, Brasil, de janeiro a maio de 2007. As uroculturas foram coletadas em dois períodos: até 24h da retirada do cateter e após sete/10 dias. RESULTADOS: amostras de urina foram colhidas em 249 mulheres. Encontrouse 23,6 por cento (n=46) de uroculturas positivas com até 24h da retirada da sonda e 11,1 por cento (n=25) com sete/10 dias após sondagem vesical. Não foi observada diferença significativa em relação aos microrganismos, quando se compararamas duas uroculturas. A Klebsiella spp. foi o principal microrganismo em ambas uroculturas (até 24h=47,8 por cento vs sete/10 dias=44,0 por cento; p=0,76), seguido de Escherichia coli e outros Gram- negativos. Os antibióticos amicacina, cefepima, ciprofloxacina, meropenem e ticarcilina-clavulanato foram os que apresentaram sensibilidade igual ou superior a 75 por cento para os principais microrganismos isolados. CONCLUSÕES: Klebsiella spp. foi o microrganismo mais encontrado nas uroculturas após sondagem vesical em cirurgias ginecológicas e o antibiótico com sensibilidade igual ou maior a 95 por cento com via de administração oral foi a ciprofloxacina.

OBJECTIVES: to determine the microorganisms mostfrequently found in urocultures after urinary catheterization and their antibiotic sensitivities in women undergoing elective gynecological surgery. METHODS: the study was carried out at theInstituto de Medicina Integral Professor FernandoFigueira, IMIP, in Recife, Pernambuco, Brazil, between January and May 2007. Urine cultures wereobtained from these patients on two occasions subsequent to the removal of the catheter: within the first 24h and 710 days later. RESULTS: urine samples were collected from 249 women. 23.65 (n=46) of the samples collected in the first 24h were found to have urine cultures and 11.1 percent (n=25) of those collected 710 days after removal of the catheter. No significant difference was observed regarding the microorganisms present in the uroculture, when comparing the two periods of sample collection. Klebsiella spp. was the most frequent microorganism found (first 24h=47.8 percent vs. 7/10 days=44.0 percent; p=0.76), followed by Escherichia coli, and other Gram negatives. The antibiotics, amicacine, cefepime, ciprofloxacin, meropenem andticarcilinclavulanate showed sensitivity equal to orgreater than 75 percent for the main microorganism isolated. CONCLUSIONS: Klebsiella spp. was the most frequent microorganism present in urocultures after urinary catheterization in women undergoing elective gynecological surgery. Ciprofloxacin was found to have a sensitivity of 95 percent.

Fatores associados à bacteriúria após sondagem vesical na cirurgia ginecológica / Factors associated with bacteriuria after indwelling urethral catheterization in gynecologic surgery

OBJETIVOS: Determinar a frequência e os principais fatores associados à bacteriúria após a sondagem vesical em mulheres submetidas à cirurgia ginecológica eletiva. MÉTODOS: Realizou-se um estudo do tipo coorte em mulheres submetidas à cirurgia ginecológica após sondagem vesical no Instituto de Medicina Integral Prof. Fernando Figueira, no período de janeiro a maio de 2007. As uroculturas foram coletadas até 24 horas após a retirada da sonda e 7/10 dias após a sondagem vesical. A análise estatística bivariada e multivariada foi realizada calculando-se a razão de risco e os seus intervalos de confiança a 95 por cento. RESULTADOS: Foram incluídas no estudo 249 mulheres. A frequência de uroculturas positivas até 24 horas depois da retirada da sonda foi de 23,6 por cento, diminuindo para 11,1 por cento 7/10 dias após a sondagem. Destas, apenas 2,4 por cento eram sintomáticas. Verificou-se menor risco de bacteriúria com 7/10 dias após a sondagem vesical quando a paciente referiu vulvovaginite tratada nos últimos três meses, não permanecendo estatisticamente significativa após a análise multivariada. Não houve associação significativa com idade, escolaridade, número de gestações, paridade, fase da vida reprodutiva, tipo e duração da cirurgia, tipo da anestesia, uso de antibiótico profilático, profissional que colocou a sonda e o tempo de permanência da sonda vesical. CONCLUSÃO: A frequência de bacteriúria foi de 23,6 por cento e 11,1 por cento com 24 horas e 7/10 dias, respectivamente. Não se encontrou associação significativa das variáveis pesquisadas com a bacteriúria evidenciada na urocultura com 7/10 dias.

OBJECTIVES: To determine the frequency and risk factors associated to bacteriuria after urinary catheterization in women submitted to elective gynecological surgery. METHODS: A cohort study was carried out among women submitted to gynecological surgery after urinary catheterization. This study took place at the "Instituto de Medicina Integral Professor Fernando Figueira" from January to May of 2007. Uroculture samples were collected during two periods: in the first 24 hours and seven to ten days after catheter removal. To demonstrate the association between risk factors and bacteriuria, the relative risk was calculated with a confidence interval of 95 percent. RESULTS: This study included 249 women. At 24 hours after catheter removal, 23.6 percent of the urocultures collected were positive, while on days 7 to 10 this was reduced to 11.1 percent. Of all participants studied only 2.4 percent had symptomatic bacteriuria. Risk of bacteriuria at 7/10 days was reduced when the patient reported a positive history of treatment for vulvovaginitis in the previous three months. However this association was not found after multivariate analysis. There was no significant association with age, education, stage of reproductive phase, number of pregnancies and deliveries, type and duration of surgery, type of anesthetics, use of prophylactic antibiotic, professional who introduced the catheter and time of urinary catheterization. CONCLUSION: Frequency of bacteriruria was 23.6 percent at 24 hours and 11.1 percent seven days after catheter removal. There was no association between bacteriuria at 7/10 days and any of the variables analyzed.