Bacteremia is defined as pathogenic bacteria presence in blood as evidenced by positive blood cultures. These bacteremia have significant consequences in terms of morbidity and mortality (ref. 1,2,3). They can lead to a state of septic shock that is life-threatening for the patient and must be treated as a matter of urgency. Any delay in treatment is detrimental to the patient. Management is based on prescription of probabilistic antibiotic therapy as soon as bacteremia is suspected. At the Groupe Hospitalier Paris Saint Joseph (GHPSJ), as soon as a blood culture is known to be positive, the Mobile Clinical Microbiology Unit (UMMC) is notified in real time. The UMMC infectiologist, in consultation with the microbiologist, evaluates microbiological data and compares them with clinical data in order to prescribe probabilistic antibiotic therapy in the patient's bed. The possible adaptation of antibiotic treatment then depends on the results of antibiotic susceptibility test. Early adaptation of antibiotic treatment to antibiotic susceptibility data, to reassess ineffective treatment or to reduce antibiotic therapy spectrum, significantly improves patient prognosis: it is therefore important that the laboratory makes antibiotic susceptibility test results available to the clinician as early as possible.
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Differences in average time between the prescribing physician's request for examination and the first change in prescribed probabilistic antibiotic therapy following the rendering of results between two groups of patients.
Timeframe: 6 months