Gentamicin-vancomycin-colistin local antibiotherapy in a cement spacer in a 54-year-old haemophilic patient with relapsing plurimicrobial severe prosthetic joint infection.

نویسندگان

  • Tristan Ferry
  • Romain Desmarchelier
  • Sophie Magréault
  • Florent Valour
چکیده

Ferry T, et al. BMJ Case Rep 2017. doi:10.1136/bcr-2017-221743 Description A 54-year-old patient with haemophilia and hepatitis C virus infection experienced acute left prosthetic joint infection due to Klebsiella pneumoniae and Staphylococcus aureus following unipolar exchange in September 2015. As the outcome was not favourable with bloody discharge despite haemophilic factor substitution, a new local debridement was performed in May 2016 and multidrug-resistant Enterobacter asburiae (only susceptible to imipenem, colistin, amikacin and fosfomycin) and Corynebacterium striatum (only susceptible to vancomycin, rifampin and linezolid) grew in cultures. As explantation was considered too risky due to the potential bleeding, systemic intravenous treatment was proposed with imipenem (3 g/day), vancomycin (2.5 g/day) and fosfomycin (12 g/day). After 3 months of therapy, the bloody discharge persisted. One month after discontinuation of antibiotics, the patient presented a large ‘bourgeon charnu’ with impressive bloody discharge (figure 1A). X-ray revealed trochanter osteolysis, without prosthesis loosening (figure 1B). Prosthesis explantation was performed, and a commercial articulated spacer was inserted. We used the COPAL G+V, which delivers locally a high amount of gentamicin and vancomycin. To have an activity against the Gram-negative pathogen, we decided to add 6 MUI of Colimycine to each dose of cement even if few data were available on this practice. A total of five doses were required to do the articulated spacer (figure 1C), leading to a total local dose of 30 MUI of colimycin. Additionally, the patient received as empirical therapy meropenem (6 g/day) and daptomycin (700 mg/day). Colistin (the active form of Colimycine) concentrations were measured locally from suction drainage fluid and in plasma (to ensure that there is no systemic diffusion) using liquid chromatography. High concentrations of colistin were measured locally during several days, 32 times (at day 1) and 5 times (at day 4) above the E. asburiae colistin minimum inhibitory concentration (MIC=0.125 mg/L). Cultures of per operative samples yielded the same E. asburiae, but not the Corynebacterium. Colistin concentration in plasma was below the limit of quantification set at 0.04 mg/L. Colistin was then administered systemically at day 5, taking over the local administration. The outcome was initially favourable, but debridement and spacer explantation were required several weeks later as haematoma with bloody discharge occurred. Superinfection with Enterococcus faecalis and Candida albicans was detected and treated. The E. asburiae was never found again. Nine months later, a small intermittent haemorrhagic discharge was still observed, making prosthesis reimplantation impossible. Articulated spacers are currently used in patients with knee prosthesis infection, as they are associated with significant improvement of clinical results and knee functionality after reimplantation. Moreover, in prosthetic joint infections, there is growing evidence concerning the potential efficacy of antibiotic-loaded spacer that provides a high local concentration of antibiotic. Commercially or locally Gentamicin–vancomycin–colistin local antibiotherapy in a cement spacer in a 54-year-old haemophilic patient with relapsing plurimicrobial severe prosthetic joint infection Tristan Ferry, Romain Desmarchelier, Sophie Magréault, Florent Valour, on behalf of the Lyon BJI Study group Images in...

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عنوان ژورنال:
  • BMJ case reports

دوره 2017  شماره 

صفحات  -

تاریخ انتشار 2017