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  • Is the subcutaneous route an alternative for administering ertapenem to older patients? PHACINERTA study.
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    Is the subcutaneous route an alternative for administering ertapenem to older patients? PHACINERTA study.

    J Antimicrob Chemother. 2019 Dec 01;74(12):3546-3554

    Authors: Roubaud Baudron C, Legeron R, Ollivier J, Bonnet F, Greib C, Guerville F, Cazanave C, Kobeh D, Cressot V, Moneger N, Videau MN, Thiel E, Foucaud C, Lafargue A, de Thezy A, Durrieu J, Bourdel Marchasson I, Pinganaud G, Breilh D

    Abstract
    BACKGROUND: Antibiotic administration by subcutaneous (SC) injection is common practice in French geriatric wards as an alternative to the intravenous (IV) route, but few pharmacokinetic/pharmacodynamic data are available. Ertapenem is useful for the treatment of infections with ESBL-producing enterobacteria.
    OBJECTIVES: To report and compare ertapenem pharmacokinetic data between IV and SC routes in older persons.
    METHODS: Patients >65 years of age receiving ertapenem (1 g once daily) for at least 48 h (IV or SC, steady-state) were prospectively enrolled. Total ertapenem concentrations [residual (C0), IV peak (C0.5) and SC peak (C2.5)] were determined by UV HPLC. Individual-predicted AUC0-24 values were calculated and population pharmacokinetic analyses were performed. Using the final model, a Monte Carlo simulation involving 10 000 patients evaluated the influence of SC or IV administration on the PTA. Tolerance to ertapenem and recovery were also monitored. ClinicalTrials.gov identifier: NCT02505386.
    RESULTS: Ten (mean ± SD age=87±7 years) and 16 (age=88±5 years) patients were included in the IV and SC groups, respectively. The mean C0 and C2.5 values were not significantly different between the IV and SC groups (C0=12±5.9 versus 12±7.4 mg/L, P=0.97; C2.5=97±42 versus 67±41 mg/L, P=0.99). The mean C0.5 was higher in the IV group compared with the SC group (C0.5=184±90 versus 51±66 mg/L, P=0.001). The mean individual AUCs (1126.92±334.99 mg·h/L for IV versus 1005.3±266.0 mg·h/L for SC, P=0.38) and PTAs were not significantly different between groups. No severe antibiotic-related adverse effects were noted.
    CONCLUSIONS: SC administration of ertapenem is an alternative to IV administration in older patients.

    PMID: 31730164 [PubMed - in process]




Infección intraabdominal



Pie diabético


  • Citrobacter koseri causing osteomyelitis in a diabetic foot with concomitant acute gouty arthritis successfully treated with ertapenem.
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    Citrobacter koseri causing osteomyelitis in a diabetic foot with concomitant acute gouty arthritis successfully treated with ertapenem.

    BMJ Case Rep. 2019 Jul 27;12(7):

    Authors: Tinevez D, Knezevic NN

    Abstract
    We present an elderly diabetic man with left hallux pain and drainage who was initially diagnosed with acute gouty arthritis using the diagnostic rule for acute gout and monosodium urate crystals presented on synovial fluid analysis. Further investigation with surgical debridement, plain X-ray, MRI and wound culture revealed concomitant Citrobacter koseri septic arthritis with osteomyelitis. C. koseri is considered an opportunistic infection that rarely causes musculoskeletal infections. Acute gouty arthritis and septic arthritis are rarely seen occurring concomitantly in the same joint and are often difficult to differentiate due to similar findings on exam and imaging. The present case illustrates that osteomyelitis with an opportunistic organism can present concomitantly with acute gouty arthritis, and the diagnosis of one should not exclude the other.

    PMID: 31352398 [PubMed - in process]



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