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Alfandari S.,Coty | Alfandari S.,Tourcoing Hospital | Cabaret P.,Center hospitalier Saint Philibert | Cabaret P.,St Philibert Hospital | And 40 more authors.
Medecine et Maladies Infectieuses | Year: 2016

Objectives: We aimed to update the epidemiology of bacteremia and evaluate their management and short-term outcome. Methods: We conducted a prospective multicenter survey from October to November 2011. Consecutive patients with at least one positive blood culture (BC) were included in the study. We evaluated the type and adequacy of empirical and documented antibiotic therapy, time to active antibiotic therapy, compliance with guidelines, and 10-day outcome. Results: A total of 23 public and private hospitals and 633 patients (493 true pathogens and 140 contaminants) were included in the study. Patients' wards were medicine (57%), surgery (19%), intensive care (14%), onco/hematology (3.7%), pediatrics (3.4%), infectious diseases (1.8%), and obstetrics (1.2%). Main pathogens were Escherichia coli (36%), Staphylococcus aureus (16%), coagulase-negative staphylococci, and Klebsiella sp. (8% each). A total of 43 (8.7%) multidrug-resistant strains were observed, including 26 extended-spectrum beta-lactamase strains and 15 methicillin-resistant S. aureus strains. An antibiotic active against the isolated pathogen was used in 74% of empirical and 96% of documented therapies. Median time between BC and administration of an active drug was 0.61 day. Empirical antibiotic therapies were protocol-compliant in 77% of cases. Few (4%) patients with contaminated BC received an antibiotic therapy (all inappropriate). Day-10 mortality was 12.1%, higher in patients presenting with severe sepsis or septic shock (22.5%) than in patients presenting with non-severe bacteremia (7.1%; P < 0.0001). Conclusion: The management of bacteremia seems satisfactory in these volunteer hospitals but bacteremia remains a severe infection. © 2016.

Sakji-Dupre L.,Lille Regional Teaching Hospital | Le Rhun E.,Lille Regional Teaching Hospital | Le Rhun E.,Oscar Lambret Cancer Research Center | Templier C.,Lille Regional Teaching Hospital | And 3 more authors.
Melanoma Research | Year: 2015

Anti-BRAF agents, including vemurafenib, have modified the prognosis for patients with melanoma. However, a difference can still be observed between extracerebral and cerebral responses. The aim of this study was to investigate the diffusion of vemurafenib in cerebrospinal fluid (CSF) from patients treated for brain metastatic BRAF-V600 mutated melanoma. Six patients treated with vemurafenib 960 mg twice daily were included. These patients had undergone a lumbar puncture because of suspicions of leptomeningeal metastasis, along with simultaneous blood sampling to measure vemurafenib level. The concentrations of vemurafenib in the CSF and the plasma were measured by high-performance liquid chromatography. The mean plasma and CSF concentrations of vemurafenib were 53.4±26.2 and 0.47±0.37 mg/l, respectively. The mean ratio of the CSF: plasma concentration was 0.98±0.84%. No relationship was found between plasma and CSF concentrations (P=0.8). In conclusion, our preliminary results highlight for the first time a low CSF vemurafenib penetration rate associated with a large interindividual variability in patients treated for metastatic BRAF-V600 mutated melanoma and brain metastases. Further investigations with larger cohorts are required to study the relationship between CSF vemurafenib concentrations and cerebral response. © 2015 Wolters Kluwer Health, Inc. All rights reserved.

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