| Autor: |
Josefine, Slater, Pelle, Hanberg, Mathias Alrø Fichtner, Bendtsen, Andrea René, Jørgensen, Eva, Greibe, Kjeld, Søballe, Mats, Bue, Nis, Pedersen Jørgensen, Maiken, Stilling |
| Rok vydání: |
2019 |
| Předmět: |
|
| Zdroj: |
The Journal of antimicrobial chemotherapy. 75(8) |
| ISSN: |
1460-2091 |
| Popis: |
Pyogenic spondylodiscitis remains a therapeutic challenge, as demonstrated by divergent treatment guidelines. The combination of moxifloxacin and rifampicin may be an attractive treatment option for cases caused by staphylococci; however, previous studies have reported a reduction in plasma concentrations of moxifloxacin when coadministered with rifampicin. The magnitude of this reduction in spinal tissues is not known.To investigate the effect of rifampicin on moxifloxacin tissue concentrations in vertebral cancellous bone, the intervertebral disc and subcutaneous adipose tissue under steady-state conditions using microdialysis in a porcine model.Twenty female pigs were randomized into two groups of 10 pigs. Group A received 400 mg of moxifloxacin orally once daily for 3 days preoperatively. Group B received 400 mg of moxifloxacin orally once daily for 3 days preoperatively combined with 450 mg of rifampicin twice daily for 7 days preoperatively. Measurements were obtained from plasma, vertebral cancellous bone, the intervertebral disc and subcutaneous adipose tissue for 24 h. Microdialysis was applied for sampling in solid tissues.Coadministration of moxifloxacin and rifampicin demonstrated a reduction of free moxifloxacin concentrations in spinal tissues. Cmax and AUC0-24 in all tissue compartments decreased in the ranges of 66%-79% and 65%-76%, respectively.Using microdialysis, we demonstrated a significant reduction of moxifloxacin Cmax and AUC0-24 in the spinal tissues when coadministered with rifampicin. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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