Vet Comp Orthop Traumatol 2020; 33(05): 327-332
DOI: 10.1055/s-0040-1714418
Original Research

Time to Peak Concentration of Amikacin in the Antebrachiocarpal Joint Following Cephalic Intravenous Regional Limb Perfusion in Standing Horses

1  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, Rehovot, Israel
,
Amos J. Tatz
1  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, Rehovot, Israel
,
Roee Dahan
1  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, Rehovot, Israel
,
Malka Britzi
2  National Residue Control Laboratory, Kimron Veterinary Institute, Beit Dagan, Israel
,
Stefan Soback
2  National Residue Control Laboratory, Kimron Veterinary Institute, Beit Dagan, Israel
,
Gila A. Sutton
1  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, Rehovot, Israel
,
Gal Kelmer
1  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, Rehovot, Israel
› Author Affiliations

Abstract

Objective The aim of this study was to determine the time (Tmax) to the maximum concentration (Cmax) of amikacin sulphate in synovial fluid of the radiocarpal joint (RCJ) following cephalic intravenous regional limb perfusion (IVRLP) using 2 g of amikacin sulphate.

Methods Cephalic IVRLP was performed with 2 g of amikacin sulphate diluted in 0.9% NaCl to a total volume of 100 mL in six healthy adult mixed breed mares. An Esmarch's rubber tourniquet was applied for 30 minutes and the antibiotic solution was infused through a 23-gauge butterfly catheter. Synovial fluid was collected from the RCJ prior to the infusion and at 5, 10, 15, 20, 25 and 30 minutes after completion of IVRLP. The tourniquet was removed after the last arthrocentesis. Synovial fluid amikacin sulphate concentrations were determined by liquid chromatography/tandem mass spectrometry.

Results The calculated mean Tmax occurred at 15 minutes (range: 10–20 minutes) post-perfusion. The highest synovial fluid amikacin sulphate concentration was noted at 10 minutes in 2 horses, 15 minutes in 2 horses and 20 minutes in 2 horses. The highest mean concentration was 1023 µg/mL and was noted at 20 minutes. Synovial mean concentrations were significantly different between 15 and 30 minutes.

Clinical Significance In this study no Tmax occurred after 20 minutes; thus, 30 minutes of tourniquet application time appear to be excessive. The 20 minutes duration of tourniquet application appears sufficient for the treatment of the RCJ in cephalic IVRLP using 2 g amikacin sulphate in a total volume of 100 mL.

Authors' Contributions

Kajsa Gustafsson, Amos J. Tatz, Roee Dahan, and Gal Kelmer contributed to the conception of study. Kajsa Gustafsson, Amos J. Tatz, Roee Dahan, Malka Britzi, and Gal Kelmer contributed to acquisition of data. Kajsa Gustafsson, Amos J. Tatz, Roee Dahan, Malka Britzi, Stefan Soback, Gila A. Sutton, and Gal Kelmer contributed to data analysis and interpretation. All authors drafted, revised and approved the submitted manuscript.




Publication History

Received: 17 November 2019

Accepted: 12 May 2020

Publication Date:
16 August 2020 (online)

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