The association between indwelling urinary catheter use in the elderly and urinary tract infection in acute care

BACKGROUND: The use of indwelling urinary catheters (IUCs) is thought to be the most significant risk factor for developing nosocomial urinary tract infections (UTIs). However, it is unclear how many elderly patients have preexisting bacteriuria prior to IUC placement. The purpose of this study was to determine 1) the frequency and appropriateness of IUC use in the Emergency Department (ED) in elderly patients admitted to our acute care hospital, 2) the percentage of elderly patients with an IUC who were discharged from the hospital with a diagnosis of UTI, 3) the percentage of patients with IUCs who were diagnosed and treated for UTI in the ED or who had admission bacteriuria ≥10(5 )organisms/ml indicating preexisting UTI, and 4) the percentage of patients with no indication of UTI on admission who had inappropriately placed IUCs and subsequently were diagnosed with a UTI. METHODS: Retrospective chart review. Chi square used to test significance of differences in proportions. RESULTS: Seventy three percent of patients who received an IUC in the ED were elderly (≥65 years old). During the study period, 277 elderly patients received an IUC prior to admission. Of these, 77 (28%) were diagnosed with UTI during their hospitalization. Fifty three (69%) of those diagnosed with a UTI by discharge either had the UTI diagnosed in the ED or had bacteriuria ≥10(5 )organisms/ml prior to IUC placement. Of the 24 elderly patients who developed a catheter-associated UTI (i.e., 9% of the elderly population who received an IUC), 11 of the IUCs were placed inappropriately. Thus, 4% of elderly patients with no indication of UTI on admission who received an inappropriate IUC in the ED had a primary or secondary diagnosis of UTI by discharge. The overall rate of nosocomial UTI due to an inappropriately placed IUC was the same in males and females. CONCLUSION: This study indicates that the strong association between IUC use and UTI may be partly explained by the high prevalence of preexisting UTI prior to IUC placement. Further prospective studies are needed to clarify the true risk vs benefit ratio for IUC use in acutely ill elderly patients

The effects of food safety education on adolescents' hand hygiene behavior: an analysis of stages of change

The hand hygiene behavior of 400 middle school students (grades 1-3) in Seoul and Gyeonggi-Do was studied to determine how stages of change were affected by food safety education, focusing on hand hygiene and general food safety. Subjects were 51.3% male and 44.3% of study subjects were first graders of middle school. Approximately 40% of subjects were at the stage of action, 42.7% were at the stage of contemplation, and 16.4% were at pre-contemplation. The most important factor that influenced proper hand washing was self efficacy (P < 0.001). Proper hand washing was also correlated significantly with positive belief (P < 0.01) and stages of change (P < 0.01). After food safety education by high-school mentors, middle-school students who were in the stages of pre-contemplation (11.1%) and contemplation (88.9%) showed significant progression toward the action stage (P < 0.001). Proper hand washing (P < 0.01) and food safety knowledge (P < 0.05) were also significantly increased after educational intervention

A higiene das mãos: as competências profissionais e as áreas de melhoria

El objetivo fue analizar los conocimientos sobre la higiene de las manos de los profesionales del Sistema Sanitario Público Andaluz (España). Estudio mediante encuestas en 2011, utilizando el Hand Hygiene Knowledge Questionnaire for Health-Care Workers con la técnica de análisis de clases latentes. La media de respuestas correctas fue de 17,51 ± 3,68. Las preguntas con porcentajes de respuestas correctas más bajos son las referidas a la prevención, mediante la higiene de las manos, de la transmisión de microorganismos después de la exposición al paciente y aquellas relacionadas con la utilización de preparados de base alcohólica. Se obtuvo un modelo de 7 clases latentes. Principales diferencias socio-demográficas: los profesionales con conocimientos más bajos suelen ser hombres, jóvenes y no sanitarios; el haber recibido formación previa no discrimina a los que presentan excelentes conocimientos. Concluimos que la revisión de los programas de formación en higiene de las manos es necesaria para mejorar los conocimientos sobre aspectos conceptuales de la transmisión de microorganismos a través de las manos.The objective of this study was to analyze knowledge on hand hygiene among staff workers in the Andalusian Public Health System (Spain). This was a cross-sectional study with surveys (2011) using the Hand Hygiene Knowledge Assessment Questionnaire for Healthcare Workers with the latent class analysis technique. The average number of questions answered correctly was 17.51±3.68. Questions with lower percentages of correct responses were those on hand hygiene for prevention of microorganism transmission to patients and those on hand- rubbing versus hand-washing. We obtained a model with 7 latent classes. Workers with lower knowledge tended to be younger, males, and non-healthcare workers. Having received previous training did not necessarily ensure excellent knowledge. The study concludes that hand hygiene training programs need to be revised in order to improve knowledge on conceptual characteristics involved in the transmission of microorganisms via the hands.O objetivo foi analisar o conhecimento sobre a higiene das mãos dos profissionais do Sistema de Saúde Andaluz (Espanha). Os inquéritos foram realizados em 2011, por meio do questionário Hand Hygiene Knowledge Questionnaire for Health-Care Workers, usando a técnica da análise de classe latente. Questões com porcentagens mais baixas de acertos são as relacionadas com a prevenção da transmissão de micro-organismos após exposição ao paciente por higiene das mãos e aquelas relacionadas com a utilização de preparações à base de álcool. Obtivemos um modelo de sete classes latentes. Principais diferenças sociodemográficas: os profissionais de conhecimentos mais baixos são homens, jovens e profissionais não relacionados à saúde; ter recebido treinamento anterior e não discriminar as pessoas com grande conhecimento. Concluímos que é necessária a revisão dos programas de formação de higiene das mãos para melhorar o conhecimento sobre aspectos conceituais da transmissão de micro-organismos pelas mãos

Effectiveness of Cranberry Capsules to Prevent Urinary Tract Infections in Vulnerable Older Persons: A Double‐Blind Randomized Placebo‐Controlled Trial in Long‐Term Care Facilities

To determine whether cranberry capsules prevent urinary tract infection (UTI) in long-term care facility (LTCF) residents. DESIGN: Double-blind randomized placebo-controlled multicenter trial. SETTING: Long-term care facilities (LTCFs). PARTICIPANTS: LTCF residents (N = 928; 703 women, median age 84). MEASUREMENTS: Cranberry and placebo capsules were taken twice daily for 12 months. Participants were stratified according to UTI risk (risk factors included long-term catheterization, diabetes mellitus, ≥1 UTI in preceding year). Main outcomes were incidence of UTI according to a clinical definition and a strict definition. RESULTS: In participants with high UTI risk at baseline (n = 516), the incidence of clinically defined UTI was lower with cranberry capsules than with placebo (62.8 vs 84.8 per 100 person-years at risk, P = .04); the treatment effect was 0.74 (95% confidence interval (CI) = 0.57–0.97). For the strict definition, the treatment effect was 1.02 (95% CI = 0.68–1.55). No difference in UTI incidence between cranberry and placebo was found in participants with low UTI risk (n = 412). CONCLUSION: In LTCF residents with high UTI risk at baseline, taking cranberry capsules twice daily reduces the incidence of clinically defined UTI, although it does not reduce the incidence of strictly defined UTI. No difference in incidence of UTI was found in residents with low UTI risk