Pharmacokinetics of regional limb perfusion using a combination of amikacin and penicillin in standing horses.
Abstract: The objectives of this study were to evaluate the compatibility and the pharmacokinetic properties of combined amikacin and penicillin administration by intravenous regional limb perfusion (IVRLP) in horses. A tourniquet was applied proximal to the carpus of 7 clinically healthy adult horses and 2 g of amikacin and 10 × 10 IU of penicillin (100 mL total volume) were sequentially injected into the cephalic vein just distal to the tourniquet. Synovial samples were collected from the joint at several times after injection. All samples were analyzed for amikacin and penicillin concentration. The mean maximum concentration (C) of both amikacin and penicillin was over 10-fold the relevant minimal inhibitory concentration (MIC) for all horses and remained above those MICs for at least 24 hours. The results of this study indicate that combining amikacin with penicillin during IVRLP in normal horses delivers high therapeutic synovial concentrations of both drugs. . Les objectifs de cette étude consistaient à évaluer la compatibilité et les propriétés pharmacocinétiques de l’administration combinée d’amikacine et de pénicilline par perfusion intraveineuse régionale des membres (PIRM) chez les chevaux. Un tourniquet a été appliqué proximalement au carpe de sept chevaux adultes en bonne santé clinique et 2 g d’amikacine et 10 × 10 UI de pénicilline (volume total de 100 ml) ont été injectés en séquence dans la veine céphalique légèrement distale au tourniquet. Des échantillons synoviaux ont été prélevés de l’articulation plusieurs fois après l’injection. Tous les échantillons ont été analysés pour la concentration d’amikacine et de pénicilline. La concentration maximale moyenne (C) de l’amikacine et de la pénicilline était plus de 10 fois supérieure à la concentration inhibitrice minimale (CIM) pertinente pour tous les chevaux et est demeurée au-dessus de ces CIM pendant au moins 24 heures. Les résultats de cette étude indiquent que la combinaison de l’amikacine avec la pénicilline durant la PIRM chez des chevaux en santé offre des concentrations synoviales thérapeutiques élevées des deux médicaments.(Traduit par Isabelle Vallières).
Publication Date: 2019-03-16 PubMed ID: 30872853PubMed Central: PMC6380264
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- Journal Article
Summary
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The research article discusses a study that examined the effectiveness and interaction of amikacin and penicillin when delivered through intravenous regional limb perfusion (IVRLP) in horses, with the results indicating this method resulted in therapeutic concentrations of both drugs in joint fluid.
Objective and Methodology of the Study
- The primary goal of this study was to analyse both the compatibility and the pharmacokinetic characteristics—that is, how the body absorbs, distributes, metabolizes, and eliminates the drugs—of combined amikacin and penicillin when administered to horses through IVRLP.
- The method used to deliver the drugs involved applying a tourniquet proximal to the carpus, or wrist joint, of seven clinically healthy adult horses. Thereafter, 2g of amikacin and 10 x 10IU of penicillin were sequentially injected into the cephalic vein, which is located just below the tourniquet. Following this, synovial fluid samples were collected from the joint at various time intervals after injection.
- All samples collected were characterized by their respective concentrations of amikacin and penicillin.
Results and Conclusions of the Study
- Results from the synovial fluid samples indicated that the mean maximum concentration (Cmax) of both amikacin and penicillin was over ten times the minimal inhibitory concentration (MIC) for all horses under examination. The MIC is the lowest concentration of a drug that will inhibit the visible growth of a microorganism, thus indicating the drug’s effectiveness at fighting infections.
- The concentration of both drugs in the horses’ synovial fluid stayed above the relevant MIC for a period of at least 24 hours. This finding highlights the persistent therapeutic efficacy of this method of drug delivery.
- The results overall demonstrate that combining amikacin with penicillin and administering the drugs via IVRLP in healthy horses delivers high therapeutic synovial concentrations of both drugs. Such high concentrations indicate that this method could be effective in treating joint infections in horses.
Cite This Article
APA
Dahan R, Oreff GL, Tatz AJ, Raz T, Britzi M, Kelmer G.
(2019).
Pharmacokinetics of regional limb perfusion using a combination of amikacin and penicillin in standing horses.
Can Vet J, 60(3), 294-299.
Publication
Researcher Affiliations
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
- Department of Large Animal Medicine and Surgery, Koret School of Veterinary Medicine, The Robert H. Smith Faculty of Agriculture, Food and Environment, the Hebrew University of Jerusalem, Israel (Dahan, Oreff, Tatz, Raz, Kelmer); Kimron Veterinary Institute, National Residue Control Laboratory, Bet Dagan, Israel (Britzi).
MeSH Terms
- Amikacin
- Animals
- Anti-Bacterial Agents
- Forelimb
- Horses
- Penicillins
- Perfusion / veterinary
- Synovial Fluid
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Citations
This article has been cited 6 times.- Redding LE, Elzer EJ, Ortved KF. Effects of regional limb perfusion technique on concentrations of antibiotic achieved at the target site: A meta-analysis. PLoS One 2022;17(4):e0265971.
- de Souza Garcia AF, Ribeiro G, de Assis Arantes J, Reginato GM, Xavier NV, Carregaro AB, Silva TJF, Grigoletto R, de Freitas SH, Dória RGS. Evaluation of totally implantable catheters in healthy horses. BMC Vet Res 2021 Oct 26;17(1):339.
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