نتایج جستجو برای: oropharyngeal colonization
تعداد نتایج: 37498 فیلتر نتایج به سال:
Pathogenic mechanisms of Candida glabrata in oral candidiasis, especially because of its inability to form hyphae, are understudied. Since both Candida albicans and C. glabrata are frequently co-isolated in oropharyngeal candidiasis (OPC), we examined their co-adhesion in vitro and observed adhesion of C. glabrata only to C. albicans hyphae microscopically. Mice were infected sublingually with ...
www.ajcconline.org AJCC AMERICAN JOURNAL OF CRITICAL CARE, November 2009, Volume 18, No. 6 507 Oral Care, Ventilator-Associated Pneumonia, and Counting Cultures There are plenty of opportunities for improvement in the field of health care–associated infection prevention. As a consequence, continuous educational efforts focused on cost-effective evidencebased strategies remain essential. This is...
are interested in the debate on the effi cacy and safety of selective digestive decontamination (SDD) and selective oropharyngeal decontamination (SOD) raised by Schultz and Haas in their review [1]. Th e authors concluded that 'SDD and SOD are equally eff ective with respect to the prevention of mortality' [1]. Th is statement is based on the results of a Dutch randomized controlled trial [2],...
Microbes of the human respiratory tract are important in health and disease, but accurate sampling of the lung presents challenges. Lung microbes are commonly sampled by bronchoscopy, but to acquire samples the bronchoscope must pass through the upper respiratory tract, which is rich in microbes. Here we present methods to identify authentic lung microbiota in bronchoalveolar lavage (BAL) fluid...
Background. Bacterial pneumonia and otitis media often follow influenza and other upper respiratory viral infections. Streptococcus pneumoniae (SP) is one of the most frequent culprits. While animal models suggest influenza enhances SP transmission and growth and that SP may increase influenza morbidity, there is limited evidence in human populations. We estimated the prevalence of SP among adu...
Background. There is limited information on the association between colonization density of upper respiratory tract colonizers and pathogen-specific pneumonia. We assessed this association for Haemophilus influenzae, Moraxella catarrhalis, Staphylococcus aureus, and Pneumocystis jirovecii. Methods. In 7 low- and middle-income countries, nasopharyngeal/oropharyngeal swabs from children with se...
BACKGROUND Prior studies have shown an increase in multidrug-resistant (MDR) E. coli colonization from two percent in U.S.-based to 11 % in deployed, healthy military personnel. It is unclear if colonization with MDR organisms occurs through deployment exposures or risks related to routine overseas travel. This study prospectively evaluates rates and risk factors associated with MDR gram-negati...
We evaluated whether elderly patients fed with nasogastric tubes (NGT) are predisposed to Pseudomonas aeruginosa colonization in the oropharynx. Fifty-three patients on NGT feeding and 50 orally fed controls with similar clinical characteristics were studied. The tongue dorsum was swabbed and cultured. P. aeruginosa was isolated in 18 (34%) of the NGT-fed group but in no controls (p<0.001). Oth...
Bacterial colonization of the oropharynx is the initial event in most lower respiratory tract infections. To study the role of bacterial adherence in lower respiratory tract infections caused by Branhamella catarrhalis (B. catarrhalis) in winter, in vitro adherence assays of the organism to human oropharyngeal cells were carried out in winter, spring, summer and autumn. A total of 57 adults of ...
Although appropriate antibiotics may improve survival in patients with bacterial pneumonia, use of empirical broad-spectrum antibiotics in patients without infection is potentially harmful, facilitating colonization and superinfection with multiresistant microorganisms. Invasive diagnostic methods, including bronchoalveolar lavage and/or protected-specimen bronchial brushing, could improve iden...
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