Clinical Evaluation of Beta-Lacta ™ Test in Urinary Infections
Clinical Evaluation of Beta-Lacta ™ Test in Urinary Infections
3rd generation cephalosporins (C3G) are the antibiotics recommended in probabilistic in most enteric infections in France including pyelonephritis and bacteraemia.
However, the prevalence of resistance of Enterobacteriaceae including E. coli to C3G is continuously increasing for several years. In 2012, in France, the proportion of E. resistant or intermediate coli categorized to C3G is 10 to 25% (EARSS data).
Antibiotics not adapted early in severe sepsis is responsible for worse prognosis for patients in terms of morbidity and mortality and unnecessary prolongation of the DMS.
At St. Joseph's Hospital on enterobacteria levels of resistance to C3G is 15.4%.
To avoid overuse of carbapenems for probabilistic antibiotic and to quickly prescribe antibiotics adapted to the resistance of the bacteria, it is interesting to use a rapid test for detection of resistance to C3G.
The Lacta ™ test could be used in this indication. This is a rapid test diagnostic orientation detecting hydrolysis of a substrate (chromogenic cephalosporin) by the enzymatic action of ESBL, cAMP-type cephalosporinases and carbapenemases. This test was initially marketed for rapid detection of resistance to C3G enterobacteria from isolated bacterial colonies in culture.
Main objective / secondary:
The investigators propose to conduct a study with a double objective:
Expected results and prospects:
This study will define the performance and limitations of this test in the most difficult situations (low number of bacteria / ml, haematic urine, ...) and will specify its indications and its place among all other tests before implanting it in our routine, as appropriate.
The clinical impact study will provide medical and economic analysis data including shortening time to adapt antibiotic therapies and put in septic isolation to argue the implementation of this test routinely.
Inclusion Criteria:
Exclusion Criteria: