Active clinical trials for "Staphylococcal Infections"

The most commonly identified organism for Surgical Site Infection (SSI) in orthopedic surgery is Staphylococcus aureus but risk factors for mono microbial S.aureus SSI are not well-known. The aim of this study was to evaluated the incidence rate of S. aureus SSI over the years and risk factors of these infections in a french University Hospital.

Staphylococcus aureus, the most virulent of the many staphylococcal species, has been recognized as one of the most important and lethal human bacterial pathogens. With the increased incidence of methicillin-resistant staphylococcus aureus (MRSA) infection in community and hospitalized patients, MRSA infections are associated with greater lengths of stay, higher mortality, and increased costs. Vancomycin and teicoplanin, are the two most commonly used glycopeptides and are the first-choice of treatment for MRSA infection. Vancomycin-induced nephrotoxicity is still a point of controversy. Teicoplanin is not known to have any nephrotoxicity. Acute kidney injury is a common complication of critical illness, which is reported in 5 to 7% of hospitalized patients. It is associated with significantly increased mortality, length of stay, and costs across a broad spectrum of conditions.

The purpose of this study is to evaluate strategies to prevent Staphylococcus aureus skin and soft tissue infections in soldiers during infantry training. This study will be conducted on three different bases among groups of male recruits to IDF training base. They will provide nasal swabs to detect Staphylococcus aureus carriage in two time points: 1. before mixing and training in confined settings, reflecting carriage acquired before entering 2. After 14-30 days. All soldiers will be under surveillance for skin infection until the end of the training program.

We intend to take a nasal swab from each pediatric pre-operative patient in our out-clinic with the intention of looking for a connection between positive operative incisions and a positive nasal swab. The patients will be in the out-patient clinic for a few hours, and will be examined post-operatively after one week. Those with positive nasal swabs will be advised to apply a nasal cream (Mupirocin)in their noses for one week. Our hypothesis is that there is a correlation between positive nasal swabs and positive incision infections.

Data on occurrence of antimicrobial resistant bacteria acquisition in rehabilitation centers will be collected. After removal of patient identifiers, information regarding the patients population will be entered into electronic sheet. The phase will last twelve months in each center.

The aim of this study was to compare the prevalence of nasal carrying of SA ST398 strains in community and hospital settings, identify the factors associated with colonization of SA ST398, determine the distribution of imported and acquired cases among SA ST398 hospital cases and characterize the genetic structure of the ST398 SA population involved in colonization.

Our previous studies delineate a novel pathway of immune activation in animals that the investigators have named Anti-Virulence Immunity (AVI). Using a mice model of bacteremia, the investigators have demonstrated that Escherichia coli Cytotoxic Necrotizing Factor 1 (CNF1) activity is sensed by the immune system. This immune sensing results in a rapid bacterial clearing during bacteremia triggered by uropathogenic E. coli-expressing CNF1. The investigators already confirmed the involvement of one inflammasome using macrophages isolated from Knock-out mice. The investigators have recently determined the conservation in human monocytes of the interleukin -1beta maturation triggered by CNF1 and observed the heterogeneous capacity of monocytes to respond to the CNF1 treatment depending on the donors. Here, to determine the importance in natura of AVI the investigators will analyze the blood content of patients presenting E. coli and S. aureus bacteremia. The DNA of monocytes isolated from patients will be extracted and various genes implicated in the activity of various inflammasomes will be sequenced to identify mutations that could explain the susceptibility to bacteremia or a specific clinical presentation, i.e. requirement of a management in ICU because of organ failure.

Secondary bacterial influenza pneumonia caused by Panton-Valentine Leukocidin Positive Staphylococcus aureus is a rare complication but with poor prognosis. This pathology seems to affect young patients (20-40 years) without any medical history. Since the influenza pandemic of 2009, this complication is more and more mentioned, sought and diagnosed. However, the literature is poor, consisting of case reports, experimental studies on murine models, and low-power studies. The main objective is to evaluate the mortality in intensive care units of patients post-influenza bacterial pneumonia due to a Panton-Valentine Leukocidin positive Staphylococcus aureus

The purpose of this evaluation is to record the management and outcome of adults with S.aureus bacteraemia (SAB) across multiple European, Asian and North American sites and to identify key quality indicators associated with improved outcome.

The number of arthroplasties is expected to grow in the next few years. Staphylococcus aureus (SA) is a primary cause of prosthetic joint infection (PJI) with serious consequences. This microorganism is frequently associated with treatment failure, hospitalizations and need of prosthesis removal, leading to an important morbidity and an increase in healthcare costs. ARTHR-IS is a retrospective multi-center study which aims to estimate the burden of SA-PJI after a hip or knee arthroplasty and their risk factors. Other objectives are to quantify the costs, the number of hospitalizations and the surgical procedures needed to treat and control the infection and finally the factors influencing therapeutic failure. Through a case-control design, ARTHR-IS will group 20 hospitals across 5 European countries in order to include 150 cases and 450 controls. The results of this study will provide critical information to develop strategies to prevent and treat SA-PJI and reduce treatment failures. Also, the results from ARTH-IS study will help in the design of future clinical trials in prosthesis infections by providing reliable estimates on the incidence of SA-PJI and the subsequent burden on health care services.