Antibiotic prophylaxis prior to urodynamic study in patients with traumatic spinal cord injury. Is there an indication?

ABSTRACT Study design: Retrospective cohort of patients with traumatic spinal cord injury (SCI) that have been hospitalized for physical-functional rehabilitation purposes. Objectives: To compare the incidence of urinary tract infection (UTI) after urodynamic study (UDS) in three hospitals that adopted different protocols with regard to the preparation of patients. Setting: Sarah Network of Rehabilitation Hospitals, Brazil. Materials and Methods: Between 2014 and 2015, 661 patients from three units of the same hospital network, one of which does not use antimicrobial prophylaxis independently of urine culture results, were evaluated after having undergone UDS. The results were compared in both univariate and multivariate analyses (logistic regression). Results: The global rate of UTI after UDS was that of 3.18% (IC 95% 2.1-4.8), with no differences between the units. In the univariate analysis the only variable that was associated with UTI after UDS was that of T6 injuries or above (P = 0.029). The logistic regression has confirmed this result, with an adjusted odds ratio of 3.06 (IC 95% 1.01 to 9.26; P = 0.0476). The use of antimicrobial prophylaxis did not alter that risk. Conclusions: This study has demonstrated that the use of antimicrobials does not prevent UTI after UDS. Patients with T6 traumatic SCI or above have got three times more chance of developing UTI after UDS if compared to those with a T7 injury or below, independently of the use of antimicrobials. Even in these patients the use of antimicrobials would not be justified.

Incidence of Bacteriuria after Urodynamic Study with or without Antibiotic Prophylaxis in Women with Urinary Incontinence / Incidência de bacteriúria após estudo urodinâmico com ou sem profilaxia antibiótica em mulheres com incontinência urinária

Abstract Introduction The presence of bacteria in urine is called bacteriuria, which may be symptomatic or asymptomatic. The manipulation of the urinary tract during urodynamic study (UDS), which is an invasive procedure, can result in urinary tract infection (UTI). Studies on the use of prophylactic antibiotics for UDSs are contradictory. Some investigators concluded that they were valuable and others did not. The objective of this study is to evaluate the efficacy of antibiotic prophylaxis before UDS. This is a placebo-control randomized double-blind study. Methods Two-hundred and seventeen women affected by urinary incontinence were eligible for this study. All patients had presented negative urine culture previous to the UDS. They were randomized in four groups: group A received placebo, group B received 500 mg of levofloxacin, group C received 80 mg trimethoprim and 400 mg sulfamethoxazole and group D received 100 mg of nitrofurantoin. A urine culture was performed 14 days after the UDS. Results We observed asymptomatic bacteriuria after the UDS in five patients in group A, one in group B, one in group C and one in group D. Only one patient on group A had symptomatic bacteriuria.We didn't observe statistical difference between the groups. When we recategorized the patients in two groups, the incidence of bacteriuria was significantly higher in the placebo group compared with the antibiotic group. Conclusion The conclusion is that antibiotic prophylaxis before the UDS did not reduce the incidence of UTI in women within the target population.

Resumo Introdução A presença de bactéria na urina é denominada bacteriúria, que pode ser sintomática ou assintomática. A manipulação do trato urinário pelo estudo urodinâmico (EUD), que é um procedimento invasivo, pode resultar em infecção do trato urinário (ITU). Os estudos sobre o uso de profilaxia antibiótica para EUD são contraditórios. Alguns investigadores concluíram que era necessário e outros não. O objetivo deste estudo é avaliar a eficácia da antibióticoprofilaxia antes da realização do EUD. Trata-se de um estudo randomizado duplo-cego. Métodos Duzentas e dezessete mulheres comqueixa de incontinência urinária foram recrutadas para este estudo. Todas as pacientes apresentaram urocultura negativa antes do EUD. As pacientes foram randomizadas em quatro grupos: o grupo A recebeu placebo, o grupo B recebeu 500 mg de levofloxacina, o grupo C recebeu 80 mg de trimetoprim e 400 mg de sulfametoxazol e o grupo D recebeu 100 mg de nitrofurantoína. Uma urocultura foi realizada 14 dias após o EUD. Resultados Observamos bacteriúria assintomática após o EUD em cinco pacientes do grupo A, uma no grupo B, uma no grupo C e uma no grupo D. Apenas uma paciente do grupo A apresentou bacteriúria sintomática. Não observamos diferença estatística entre os grupos. Quando recategorizamos as pacientes em dois grupos, a incidência de bacteriúria foi significativamentemaior no grupo placebo emcomparação como grupo antibiótico. Conclusão A conclusão deste estudo é que a antibióticoprofilaxia antes do EUD não reduz a incidência de ITU nesse grupo de mulheres.

Resistencia bacteriana de cultivos de orina en un hospital oncológico: seguimiento a diez años / Bacterial resistance from urine cultures at an oncological center: follow-up to 10 years

Resumen: Objetivo: Describir los patrones de resistencia bacteriana en cultivos de orina de pacientes de un hospital oncológico en la Ciudad de México, de 2004 a 2013. Material y métodos: Se obtuvo el porcentaje de susceptibilidad para diferentes antibióticos, describiendo por separado las bacterias multidrogorresistentes (MDR). Se analizaron por separado las cepas obtenidas de pacientes hospitalizados de las de la comunidad. Resultados: Se realizaron 51 202 cultivos, de los cuales se identificaron 14 480 bacterias (28.3%). De éstas, se reportaron 11 427 Gram negativos (78.9%); 2 080 Gram positivos (14.4%); y 973 (6.6%) levaduras. Escherichia coli fue el principal microorganismo aislado (56.1%); 24% de las cepas de la comunidad y 66% de las nosocomiales fueron productoras de beta-lactamasas de espectro extendido (BLEE). Klebsiella pneumoniae se identificó en 705 cultivos (4.8%), 115 de los cuales fueron BLEE (16%): 13.1% de la comunidad y 29.8% nosocomiales. Pseudomonas aeruginosa se identificó en 593 cultivos (4.1%): 9% de la comunidad y 51% nosocomiales. Conclusiones: Las cepas MDR son mucho más frecuentes en muestras de origen nosocomial. Es prioritario intensificar el uso racional de antibióticos en la comunidad y el programa de desescalamiento de antimicrobianos en el hospital.

Abstract: Objective: To describe the incidence and patterns of bacterial resistance in urine samples from a tertiary care oncology hospital in Mexico, from 2004 to 2013. Materials and methods: We included the strains obtained from urine cultures, describing separately multidrug-resistant (MDR) bacteria. We analyzed the susceptibility to different antibiotics. Results: 51 202 urine cultures were processed during the study; 14 480 (28.3%) cultures were positive. In 11 427 samples Gram negative (79%) were isolated, 2 080 Gram positive (14.4%), and 973 yeasts (6.6%). Escherichia coli was the most frequent bacteria identified (56.1%); 24% of the community strains and 65.7% of the nosocomial were extended-spectrum beta-lactamase producers (ESBL). Klebsiella pneumoniae was isolated in 705 samples (4.8%); 115 were ESBL (16%), 13.1% from community and 29.8% from nosocomial source. Pseudomonas aeruginosa was identified in 593 cultures (4.1%): 9% from community and 51% nosocomial. Conclusions: MDR bacteria were more frequent in nosocomial isolates. It should be a priority to intensify the rational use of antimicrobials in the community and antibiotic stewardship in the hospital.

Preditores clínicos de bacteriúria assintomática na gestação / Clinical predictors of asymptomatic bacteriuria during pregnancy

OBJETIVOS: Estimar a prevalência de bacteriúria assintomática (BAS) entre gestantes atendidas em pré-natal de Serviço Universitário e identificar prováveis preditores clínicos. MÉTODOS: Estudo prospectivo de corte transversal, envolvendo 260 gestantes matriculadas em serviço de pré-natal de baixo risco entre agosto de 2008 e outubro de 2009, sem sintomas de infecção do trato urinário. Foram excluídas aquelas com febre, disúria, tenesmo vesical, dor lombar, presença de sangramento genital, perda de líquido amniótico, uso de antimicrobianos nos últimos 30 dias e aquelas que não desejaram participar do projeto. A presença de colonização bacteriana ≥10(5) UFC/mL de único patógeno, na amostra urinária obtida do jato médio, foi considerada como a variável dependente. As variáveis estudadas foram: idade, raça, estado civil, nível de instrução, história obstétrica, idade gestacional, anemia, traço falciforme, colpite, passado de infecção do trato urinário, polaciúria, urgência miccional e incontinência urinária. Dados do sumário de urina também foram analisados, como a presença de leucocitúria, flora bacteriana aumentada, hematúria, proteinúria e nitrito. A análise estatística foi realizada com o programa Statistical Package for the Social Sciences (SPSS) 13.0 e a significância estatística foi previamente definida por valor p<0,05. As prevalências foram expressas por percentual e intervalo de confiança considerado foi de 95 por cento. RESULTADOS: A prevalência de foi de 12,3 por cento (IC95 por cento=8,3-16,3). O agente etiológico mais frequente foi a E. coli (59,4 por cento). A regressão logística indicou que a urgência miccional (OR=5,9; IC95 por cento=2,2-16,3; p<0,001), a leucocitúria (OR=2,8; IC95 por cento=1,0-7,8; p=0,04) e a flora bacteriana aumentada (OR=10,6; IC95 por cento=3,9-28,5; p<0,001), são preditores independentes de BAS durante a gestação. CONCLUSÃO: A prevalência de bacteriúria assintomática na população estudada é alta. O escore preditor criado com o modelo final de regressão logística possui uma acurácia de 91,9 por cento para bacteriúria.

PURPOSE: To estimate the prevalence of asymptomatic bacteriuria among pregnant women attended at our university prenatal care clinic and to identify probable clinical predictors. METHODS: Across-sectional study was carried out from August 2008 to October 2009 at the Bahiana School of Medicine involving 260 pregnant women without symptoms of urinary tract infection. The following exclusion criteria were considered: presence of clinical signs such as fever, dysuria, vesical tenesmus, lumbar pain, history of active genital bleeding or loss of amniotic fluid, use of antimicrobial agents in the 30 days prior to sample collection, and refusal to participate in the project. The presence of single pathogen bacterial colonization ≥10(5) CFU/mL in the urine sample obtained from the middle jet was considered to be a dependent variable. The predictive factors evaluated were as follows: age, race, marital status, schooling, gestational age, hypertension, anemia, vaginal infection, sickle cell trait and previous history of urinary tract infection, urinary symptoms related to the lower urinary tract (frequency, urgency and nocturia) and data obtained from the urine summary (leukocyturia, increased bacterial flora, hematuria, proteinuria, and presence of nitrite). Statistical analysis was performed with the Statistical Package for the Social Sciences (SPSS) software version 13.0 and the level of significance was set at p<0.05. Prevalences were expressed as percentage, and the confidence interval considered was 95 percent (95 percentCI). RESULTS: The prevalence of asymptomatic bacteriuria was 12.3 percent (95 percentCI=8.3-16.3). E. coli was the most frequent etiologic agent (59.4 percent). Logistic regression indicated that urgency to void (OR=5.99; 95 percentCI=2.20-16.31; p<0.001); leukocyturia (OR=2.85; 95 percentCI=1.04-7.83; p=0.042) and increased bacterial flora (OR=10.62; 95 percentCI=3.95-28.56; p<0.001) were independent predictors of asymptomatic bacteriuria. CONCLUSION: The prevalence of asymptomatic bacteriuria in the studied population was high. The prediction score created for the final logistic regression model has an accuracy of 91.9 percent for bacteriuria.

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.

Asymptomatic bacteriuria among pregnant women referred to outpatient clinics in Sanandaj, Iran

OBJECTIVES: Determine the prevalence of asymptomatic urinary tract infection (AUTI) among pregnant women. We also determined the antibacterial susceptibility of the isolates to various antibiotics and associated risk factors in AUTI. MATERIALS AND METHODS: One thousand five hundred and five consecutive pregnant women were included in the study. Mid-stream urine specimen for complete examination of urine was obtained. RESULTS: Of 1505 pregnant women, 134 (8.9 percent) had bacteriuria. The mean age of the all the pregnant women included in the study was 28.40 years with a standard deviation of 6.16. Age ranged from 15 to 45 years of age. The urine culture of the asymptomatic pregnant women (1505 cases) showed growth in only 134 cases (8.9 percent). Escherichia coli was the commonest organism 79 (58.96 percent) followed by CN Staphylococcus 22 (16.8 percent) and S aureus 18 (13.43 percent). Escherichia coli, which comprised 58.96 percent (79) of the isolates, were 88.62 percent, 87.35 percent, and 83.55 percent sensitive to cefotaxime, ciprofloxacin and cefotizoxime respectively. Similarly, E. coli were 89 percent, 70 percent, and 20 percent resistant to ampicillin, cotrimoxazole, and nitrofurantoin respectively (OR 1.57 95 percent CI 1.01, 2.44). After analyzing, four variables, hemoglobin levels seem to be independently associated with asymptomatic bacteriuria (OR = 9.41 (1.65-50.38). CONCLUSION: Prevalence of asymptomatic bacteriuria among pregnant women was 8.9 percent. The predominant organisms were Escherichia coli 79 (58.96 percent), followed by CN Staphylococcus 22 (16.8 percent). Most strains of Escherichia coli showed that they were resistant to ampicillin, tetracycline and gentamicin.

Prevalence of asymptomatic bacteriuria and its consequences in pregnancy in a rural community of Bangladesh.

This was a cross-sectional followed by cohort type of study conducted among the pregnant mothers of second trimester in the rural areas of Rajshahi district. Initially 1800 pregnant mothers ofsecond trimester were selected from 18 unions applying 2-stage random sampling. A total of 216 pregnant mothers with asymptomatic bacteriuria were paired among the rest of the healthy pregnant mothers (without bacteriuria) on the basis of age, gravida and economic status for cohort study to relate asymptomatic bacteriuria with the incidence of symptomatic bacteriuria, hypertensive disorders in pregnancy (HDP) and pre-term delivery. The matched paired pregnant mothers werefollowed monthly interval up to delivery. The prevalence of asymptomatic bacteriuria was 12% among the pregnant mothers in rural Rajshahi. E. Coli was the commonest causative agent of both asymptomatic and symptomatic bacteriuria. The results of this study suggest that asymptomatic bacteriuria were more prone to develop symptomatic bacteriuria, hypertensive disorders in pregnancy and pre-term delivery than that of the healthy mothers (without bacteriuria). Screening of bacteriuria in pregnancy and proper treatment must be considered as an essential part of antenatal care in this rural community.

Infecção do trato urinário e bacteriúria assintomática: estudo em gestantes adolescentes atendidas em Serviço Público da cidade do Recife-Pernambuco / Urinary tract infection and asymptomatic bacteriuria: a study in pregnant teenagers in attendance at two public hospitals in the city of Recife-Pernambuco

O objetivo deste estudo foi avaliar a ocorrência de infecção do trato urinário e bacteriúria assintomática em gestantes adolescentes com 16 ou mais semanas de gestação, acompanhadas em pré-natais do Recife, no período entre junho de 2001 e agosto de 2003. Realizou-se um estudo de coorte abrangendo 153 gestantes atendidas nos pré-natais do Hospital das Clínicas da Universidade Federal de Pernambuco e da Maternidade da Encruzilhada. O exame bacteriológico foi realizado a partir de amostra de urina e consistiu na realização do exame direto, da cultura e do antibiograma. A ocorrência de infecção urinária foi de 24,2 e a de bacteriúria assintomática 14,4. As principais bactérias encontradas foram: Escherichia coli (28,7), Streptococcus agalactiae (23,8) e Klebsiella pneumoniae (19). Das gestantes com bacteriúria a resistência aos antimicrobianos foi de 70, e os que apresentaram maior resistência foram ampicilina (20,9), gentamicina (13,9) e cefalotina (11,62). Estes resultados indicam uma elevada ocorrência de infecção urinária e bacteriúria assintomática nas gestantes adolescentes com 16 ou mais semanas de gestação, além de alta resistência bacteriana. Este estudo enfatiza a importância da indicação de urocultura também em fases gestacionais mais tardias nas adolescentes da rede pública.

Asymptomatic bacteriuria in pregnant women

The aim of this study was to evaluate the frequency of bacteriuria in pregnant women referred to the medical centers of Tabriz, Iran, for prenatal care. A total of 1100 healthy pregnant women who were referred to 50 medical centers in Tabriz for a regular prenatal care were evaluated for bacteriuria. The frequency of asymptomatic bacteriuria was 6.1%. Maternal age was lower in the women with a positive urine culture [P = .02]. Asymptomatic bacteriuria had no relationship with gestational age, parity, level of education, and body mass index. We found a relatively high rate of bacteriuria in our cohort of asymptomatic pregnant subjects, especially the younger ones. For prevention from the complications of the asymptomatic bacteriuria in pregnant women, such as pyelonephritis, hypertension, preeclampsia, low birth weight, prematurity, septicemia, and even maternal and neonatal death, it is recommended to perform urine culture as a routine evaluation during the pregnancy

Risk Factors for Nosocomial Urinary Tract Infection in the Intensive Care Unit with a Positive Urine Culture and Foley Catheterization / 간호학회지

PURPOSE: The purpose of this study was to identify the risk factors for a nosocomial urinary tract infection in intensive care units with a foley catheterization which showed a positive urine culture. METHOD: Three-hundred eighty-seven patients were included in the study. A retrospective review of the electrical medical record system's databases and medical record sheets in hospitalized patients from January 2003 to December 2003 was used. The collected data was analyzed by descriptive statistics, t-test, chi-square test and logistic regression analysis. RESULT: The frequency of the participants' nosocomial urinary tract infection was 72.9%. Significant risk factors for a nosocomial urinary tract infection were 'age', 'place of catheter insertion', 'frequency of catheter change', and 'duration of catheterization'. These variables explained 18.4% of variance in the experience of nosocomial urinary tract infection in intensive care units with foley catheterization. CONCLUSION: Medical personnel can decrease the incidence of a nosocomial urinary tract infection by recognizing and paying attention to the duration of catheterization, frequency of catheter change, and place of catheter insertion. As a result, specific and scrupulous strategies should be developed to reflect these factors for decreasing nosocomial urinary tract infections.

Three-Year Follow-up of an Outbreak of Serratia marcescens Bacteriuria in a Neurosurgical Intensive Care Unit

We report on the investigations and interventions conducted to contain an extended outbreak of Serratia marcescens bacteriuria that lasted for years in a neurosurgical intensive care unit (NSICU). A case-control study was performed to identify the risk factors for S. marcescens acquisition in urine. In case patients, urine sampling for tests and central venous catheterization were performed more frequently before the isolation of S. marcescens. Case patients were more frequently prescribed third-generation cephalosporins. Adherence to hand antisepsis was encouraged through in-service educational meetings and infection control measures, especially concerning the manipulation of indwelling urinary catheters, were intensified. The outbreak persisted despite the reinforcement of infection control measures. However, no patient has newly acquired the organism in the NSICU since December 2004. Multiple factors, including inadequate infection control practices and inappropriate antimicrobial usage, possibly contributed to the persistence of this S. marcescens outbreak. Healthcare workers should consistently follow infection control policies to ensure quality care.

Three-Year Follow-up of an Outbreak of Serratia marcescens Bacteriuria in a Neurosurgical Intensive Care Unit

We report on the investigations and interventions conducted to contain an extended outbreak of Serratia marcescens bacteriuria that lasted for years in a neurosurgical intensive care unit (NSICU). A case-control study was performed to identify the risk factors for S. marcescens acquisition in urine. In case patients, urine sampling for tests and central venous catheterization were performed more frequently before the isolation of S. marcescens. Case patients were more frequently prescribed third-generation cephalosporins. Adherence to hand antisepsis was encouraged through in-service educational meetings and infection control measures, especially concerning the manipulation of indwelling urinary catheters, were intensified. The outbreak persisted despite the reinforcement of infection control measures. However, no patient has newly acquired the organism in the NSICU since December 2004. Multiple factors, including inadequate infection control practices and inappropriate antimicrobial usage, possibly contributed to the persistence of this S. marcescens outbreak. Healthcare workers should consistently follow infection control policies to ensure quality care.

High prevalence of bacteriuria in pregnancy and its screening methods in north India.

The study aims at finding out the prevalence of bacteruria in pregnancy in an urban setting and ascertaining methods to screen them in primary care clinics. A total of 1 61 pregnant ladies visiting a primary care clinic were screened for bacteriuria based on the symptomatology. Urine culture was done to know the prevalence of bacteriuria. Sensitivities and specificities were calculated for each symptom and risk assessment. A score card was developed based on combination of positive risk assessment and constellation of symptoms. Prevalence of symptomatic and asymptomatic bacteriuria was found to be 19.87% and 4.34% respectively. Prevalence of bacteriuria was significantly high among those who had intercourse more frequently and those with less water intake. Those with a score of more than or equal to 4, as per score card were 60% more likely to suffer from bacteriuria. When combined with microscopic examination for leucocytes on positively screened, the positive predictive value was found to be 89%. It is concluded that prevalence of symptomatic bacteriuria is common among pregnant women. Syndromic management of cases on the basis of score card is helpful in resource constraint areas. This may be combined with microscopic examination of urine to entail rational use of antibiotics.

Asymptomatic bacteriuria and inflammatory response urinary tract infection of elderly ambulatory women in nursing homes

Background. Bacteriuria = 10 to fifth CFU/ml is evidence of urinary tract infection in the absence of associated signs or symptoms. The presence of pyuria with asymptomatic bacteriuria established the response of elderly women against microorganisms capable of causing invasiveness or tissue injury of the urinary tract. Methods. The association between bacteriuria and pyuria was determined in 178 elderly, ambulatory women without symptoms of urinary tract infection in seven nursing homes. Urine culture results were subsequently analyzed in conjunction with absolute leukocyte count in urine. In this cross-sectional study, asymptomatic bacteriuria in elderly women was classified with and without pyuria. Results. The prevalence of asymptomatic bacteriuria was found in 44 (24.7 percent) elderly women. The presence of pyuria had a sensitivity of 63.6 percent for bacteriuria and a specificity of 91 percent. The positive predictive value for the presence of pyuria predicting those with bacteriuria was 70 percent, and the negative predictive value for the absence of pyuria predicting those without bacteriuria was 88.4 percent. Escherichia coli was the most common organism isolated in 81.8 percent of the women. Conclusions. bacteriuria = 10 to fifth CFU/ml associated with pyuria was detected in 77 percent of elderly women with asymptomatic urinary tract infections bacteriuria of < 10 to fifth CFU/ml with pyuria proves less sensitive as an indicator of urinary tract infection. Elderly women with pyuria but without bacteriuria should be studied for other causes of urinary tractinflammation

The value of positive nitrites in screening asymptomatic bacteriuria amongst Malaysian school children.

It is important to diagnose and treat urinary tract infection in children before renal damage has taken place. Hence a new screening procedure will be of interest. This study was conducted to evaluate the efficacy of urinary nitrite in screening for asymptomatic bacteriuria among school children compared to a more traditional method. Of the 44,816 school children investigated 240 (0.54%) students were judged to have bacteriuria ie 82 (0.19%) in boys and 158 (0.35%) in girls. Escherichia coli was the commonest organism isolated (28.75%). Urine dipstick testing for nitrite was found to have a low sensitivity and positive predictive value. While urinalysis for pyuria was noted to have a sensitivity of 77.9%, a specificity of 95.8% and a negative predictive value of 99.9%.

Socio-biological associations of bacteriuria in pregnancy

The prevalence and socio-biological relations of bacteriuria was found to be 16.7 per cent and it was more common in the 30-39 age group, among parous women, among negroes, and in patients with a low family income and overcrowded living conditions. Symptoms were present in 19 per cent of bacteriuric patients and almost one-third gave a past history of urinary tract infection. Only 10 per cent had been previously exposed to sexually transmitted diseases such as syphilis, gonorrhoea and herpetic genital infections. Because of the serious consequences to mother and foetus, we advocate quantitative urine cultures for all antenatal patients, especially those from disadvantaged socio-economic conditions

Bacteriuria e infección urinaria en pacientes ancianos / Urinary tract infection bacteriuria in elderly patients

La infección del tracto urinario es una enfermedad importante en los ancianos. Su prevalencia, etiología, manifestaciones clínicas y manejo se diferencian sifnificativamente de la infección observada en la población general. La bacteriuria es un problema serio de los pacientes añosos que residen en las Instituciones geriátricas. El tratamiento de la bacteriuria asintomática no tiene ningún beneficio potencial y, por lo tanto, no se recomienda

Asymptomatic bacteriuria in patients with diabetes mellitus

The study was carried on 300 cases to assess the rate of asymptomatic bacteriuria in patients with diabetes mellitus. Cases were grouped into three groups. The first group included 100 diabetic patients with diabetic complications. The second group included 100 diabetic patients without diabetic complications. A third group included 100 non diabetic apparently healthy persons as a control group. 34% of complicated diabetics [group [I]] and 25% of uncomplicated diabetics [group [II]] had significant bacteriuria. While only 12% of the control group had significant bacteriuria compared with 29.5% of the two diabetic groups. There was significant difference in pyuria between the diabetic group and the control group [6.5% and 1% respectively]. The association between bacteriuria and pyuria was highly significant in all studied groups. Also there was significant difference as regards the significant bacteriuria between each studied group in females [54%, 36%, and 18% for complicated, uncomplicated and control group respectively], While the difference between each group in males was insignificant [14%, 14%, and 6%]. Organisms causing asymptomatic bacteriuria were aerobic in 85.3% of group [I], 96% in group [II] and 100% in control persons. The anaerobic organisms were detected in the remaining of diabetic cases. The difference between the three studied groups as regards isolated organisms is insignificant. E. coli was the prevalent causative agent of significant bacteriuria in all studied groups [47% in group [I], 48% in group [II], and 50% in controls]. The isolated aerobic organisms was significantly higher than anaerobic organisms. Urine specimens were examined by direct immuofluorescence test for detection of antibody coated bacteria [IF-A CB]. ACB was detected in 32.4% of complicated diabetic patients and 12% of uncomplicated diabetics, with significant bacteriuria. The rate of significant bacteriuria was found to increase with the age of patients and the duration of diabetes especially the complicated one, but not with degree of control of diabetes