Active clinical trials for "Escherichia coli Infections"

Prospective, multicenter observational study to collect Escherichia coli (E. coli) isolates originating from mechanically ventilated intensive care unit (ICU) patients; in order to characterize phenotype and genotype of E. coli strains retrieved from the lower respiratory tract of ventilated patients.

This study aims at determining within a short time (<3h) the susceptibility to clinical isolates of E. coli to the major antibiotics directly from positive blood cultures.

Despite the characterization of many aetiologic genetic changes. The specific causative factors in the development of sporadic colorectal cancer remain unclear. This study was performed to detect the possible role of Enteropathogenic Escherichia coli (EPEC) in developing colorectal carcinoma.

Diarrhoea is the one of the top five leading causes of death among children below the age of five years, globally. It is estimated that one in ten deaths in children under five is attributed to diarrhoea. Enterotoxigenic E.coli (ETEC) is one of the major causative agents of moderate-to-severe (MSD) diarrhoea among children both globally and in Zambia. The overall aim of this study is to document the burden of ETEC associated diarrhoea in Zambian children under 3 years of age.

There has been a great increase in the incidence of infections caused by bacteria that are resistant to antibiotic agents. Many of these infections result in worse outcomes of patients and increased costs to the healthcare system. The study aims to survey two germs that are resistant to a wide range of antibiotics used today. The investigators are particularly interested in studying the potential to stop the spread and prevent outbreaks of these germs through contact isolation of patients affected by these germs. Patients will be included in the study if they have an antibiotic resistant infection caused by any of the 2 bacteria: E. coli and K. pneumoniae. The research team will then perform rectal, skin (armpit, groin, umbilicus), throat, urine, and, if applicable, wound cultures to determine other sites where the germ may be present but not causing an infection. The study coordinator will furthermore examine the patient's medical record and conduct a short interview in order to evaluate specific information about the bacteria that have been recovered. This research does not involve any interventions beyond collection of specimens and there are no added risks to the patients from the conduction of the study. Neither will there be a benefit at the patient level. The benefit will be at the level of the patient population, i.e. at a larger scale once the information collected is analyzed. Only the principal investigator and study coordinators will have access to all patient-specific information. Once all information is collected, all patient identifiers, such as name and medical record number, will be deleted.

To determine the value of increasing use of piperacillin/tazobactam as empiric therapy and restricting extended-spectrum cephalosporins in reducing the cases of ESBL producing Escherichia coli and Klebsiella pneumoniae in hematology and oncology units

The purpose of this study is to review patients with E. coli infections at UPMC from September 1, 2008 to August 31, 2010 to determine if these infections have arisen in the community rather than in hospitals or nursing homes and determine their clinical outcomes. The specific aims of this study are to: Review whether cephalosporin-resistant E. coli infections are hospital-acquired, healthcare-associated or community-associated. Determine the clinical outcome of the patients according to the antibiotics given.

The purpose of this study is to review patients with E. coli infections at UPMC from January 1, 2004 to December 31, 2005 to determine if these infections have arisen in the community rather than in hospitals or nursing homes. The occurrence of such resistant isolates could be devastating if they were associated with bloodstream infection, such as sometimes accompanies urinary tract infection, since antibiotic resistant E. coli is not suspected in isolates coming from the community.

The purpose of this study is to review patients with E. coli infections at the University of Pittsburgh Medical Center (UPMC) from September 1, 2006 to August 31, 2007 to determine if these infections have arisen in the community rather than in hospitals or nursing homes. The occurrence of such resistant isolates could be devastating if they were associated with bloodstream infection, such as sometimes accompanies a urinary tract infection, since antibiotic resistant E. coli is not suspected in isolates coming from the community. Therefore, the aims of this study are to: Review whether extended-spectrum beta-lactamase (ESBL)-producing organisms (E. coli, Klebsiella species and Proteus species) are hospital-acquired, healthcare-associated, or community-associated. Investigate the prevalence of ESBL-positive E. coli in foodstuffs (beef, poultry, turkey, and pork), as a potential source for ESBL producers in the community. Compare the clonal relationship of the genome and resistance plasmids carried by the ESBL-producing isolates (healthcare-associated, community-associated, and of animal origin) and study the associations of ESBL-mediated resistance with resistance to other classes of antimicrobials.

The sequence type 131 (ST131) is a predominant lineage among extraintestinal pathogenic Escherichia coli. It plays a major role in the worldwide dissemination of E. coli that produce extended-spectrum beta-lactamase (ESBL). The aim of this study was to describe the epidemiology of ESBL producing ST131clonal group in our university hospital. All patients with an infection due to ESBL E. coli will be prospectively included for a 2-year period. ST131 isolates will be identified and risk factors associated to ST131 will be determined in comparison to non-ST131 ESBL E. coli.