Study Status: Active, not recruiting
Recruit Status: Active, not recruiting
Study Type: Observational
Official Title: Prevalence of Enterobacteriaceae With Decreased Susceptibility to Carbapenems in Eastern Inter- Region
Brief Summary:
Upon penicillins' introduction, inactivation of beta- lactam antibiotics by enzymes produced by bacteria was demonstrated. Until recently, carbapenems were a relatively spared subclass by these enzymes which makes the molecules of last resort in serious infection. Recently the prevalence of enzymes hydrolysing carbapenem, the carbapenemases, was increasing in some countries. But these carbapenemases are not the only mechanism involved in a decreased susceptibility to carbapenems which is sometimes linked to the conjunction of several resistance mechanisms. Data available on the epidemic situation of this new resistance are essential for improving their detection, the management of infections in patients and prevent the occurrence of epidemic. In this context, the investigators propose a study in the North-East inter-region to estimate the prevalence of Enterobacteriaceae with decrease susceptibility to carbapenems and look for risk factors for infection with this type of bacteria. The study is conducted in five teaching hospitals (Besançon, Dijon, Nancy, Reims and Strasbourg) and two general hospitals (Colmar and Troyes) in North-Eastern France. For one year, all the Enterobacteriaceae isolates with a decreased susceptibility to carbapenems (CDSE) according to the 2012 Antibiogram Comity of the French Microbiology Society (CA-SFM) (MIC of ertapenem > 0.5 μg/mL) are collected and sent to the bacteriology laboratory of the Reims University Hospital. Among these strains 105 are randomly selected. The clinical study is conducted as follow: for each patient with CDSE isolate included in a center, 2 control patients are selected. They are the patients having the 2 Enterobacteriaceae isolates, with no reduced susceptibility to carbapenems and following the CDSE isolate in the same center.
Microbiological study : identification of isolates is performed using MALDI-TO