[Predictive factors of acquisition of epidemic extended-spectrum beta-lactamase-producing Escherichia coli]. / Etude des facteurs prédictifs d'acquisition d'une souche épidémique d'Escherichia coli productrice de bêta-lactamase à spectre étendu.

The aim of the study was to determine predictive factors of epidemic extended spectrum beta-lactamase-producing Escherichia coli acquisition. All patients presenting any type of culture positive for ESBL-producing E. coli between November 2006 and October 2007 were included. An epidemic case was defined as a patient colonized with a clonal strain having epidemiological link with an another patient harbouring the same strain. Clinical and administrative data were recorded. Groups were compared by univariate and multivariate analysis using SAS software. Were included in this study 148 patients: 60 epidemic and 88 sporadic cases. Multivariate analysis showed several predictive factors of epidemic strain acquisition: female gender, high Charlson index, treatment by amoxicillin or ticarcillin-clavulanic acid, admission to emergency unit and hospitalisation in a high number of different care units. Identification of predictive factors of epidemic ESBL-producing E. coli strains acquisition may help to limit cross transmission of such strains.

[Legionellosis due to Legionella gormanii fortuitously found in a man with chronic lymphocytic leukemia: a case study and literature review]. / Légionellose à Legionella gormanii de découverte fortuite et leucémie lymphoïde chronique: à propos d'un cas et revue de la littérature.

Legionellosis due to other species than Legionella pneumophila is rarely described in human cases. It has been reported in immunocompromised patients with respiratory symptoms of pneumonia. We report a case of legionellosis in an immunocompromised 54-year-old man hospitalized for a blood transfusion. A routine pulmonary X- Ray was made and then a bronchoalveolar lavage was collected in which Legionella gormanii was identified. The diagnostic of legionellosis must be considered in all immunocompromised patients presenting with any pulmonary symptoms.

Economic impact of healthcare-associated rotavirus infection in a paediatric hospital.

The aim of this prospective study was to determine the extra-length of stay and the average cost for rotavirus healthcare-associated infection (HAI). Children admitted to the paediatric ward of the Reims University Hospital between the 1 December 2001 and 31 March 2002, were included in a pairwise matched (1:1) case-control study. Cases were defined as patients with rotavirus HAI. Controls were selected according to matching variables in a stepwise fashion. The costs measured in this study included all expenses sustained by the hospital. Information on costs was obtained from medical records and the hospital economic department. The attack rate and the incidence of healthcare-associated acquired rotavirus infection were 6.6% and 15.8 per 1000 hospital days, respectively, during a winter outbreak. Fifteen percent of HAI were identified after discharge. The average cost per case was 1930 and the mean excess length of stay was 4.9 days. Our findings clearly demonstrate the substantial expense incurred as a result of HAI caused by rotavirus in children. To prevent these costly infections, several cost-effective measures such as standard precautions should be reinforced in the education of the healthcare workers.

[Nosocomial Burkholderia cepacia outbreak in an intensive pediatric care unit]. / Epidémie nosocomiale à Burkholderia cepacia dans une unité de réanimation infantile.

BACKGROUND: We report an outbreak of Burkholderia cepacia respiratory tract infection and colonization in an intensive pediatric care unit.P PATIENTS AND METHODS: Between February and December 1999, B. cepacia was isolated from five children hospitalized in this unit. We reviewed the charts of the patients, evaluated the antiseptics use and the disinfection practices for reusable patient care equipment. An environmental study was conducted and comparison of B. cepacia was performed with genotypic method (RAPD). RESULTS: All patients were mechanically ventilated and had received large spectrum antibiotics. The disinfection procedure for reusable equipment was not respected and some single-dose of antiseptics solutions were used for several patients. B. cepacia was not found in 34 environmental samples. The RAPD assay revealed that all five isolates had identical DNA profiles. CONCLUSION: Despite the investigation the source of the B. cepacia clone in this nosocomial outbreak remained unknown, but antiseptics use and disinfection practices were revised. No new B. cepacia infections were identified after control measures were implemented.

Gastroscopy-associated transmission of extended-spectrum beta-lactamase-producing Pseudomonas aeruginosa.

An unusual multi-drug-resistant Pseudomonas aeruginosa (MDR-PA) was isolated in four patients whilst hospitalized in a French teaching hospital between May and August 2011. All four patients had undergone an oesophago-gastro-duodenoscopy with the same gastroscope over a five-month period. This endoscope was associated with a culture positive for the MDR-PA. Observations of endoscope reprocessing identified deviations from the agreed processes: insufficient initial cleaning, shortening of the immersion time and brushing time, insufficient channel flushing, and inadequate drying prior to storage. Since withdrawing the gastroscope and institution of strict adherence to the agreed processes, no other MDR-PA cases have been isolated.