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  • Title: A modified technique for the production of an arterio-venous shunt in sheep, allowing a comparison of biocompatibility of synthetic materials.
    Author: Stertmann WA, Scheld HH, Kubicek J, Fitz H, Lukas H, Schulze H.
    Journal: Lab Anim; 1990 Jan; 24(1):44-7. PubMed ID: 2304324.
    Abstract:
    Polytetrafluorethylene (PTFE) prostheses were implanted in 12 sheep as a shunt between the carotid artery and the jugular vein using an end-to-side anastomosis technique. This technique allows repeated tests of the pharmacological and toxicological safety of artificial kidney units after both single and multiple administration. Furthermore, it enables the investigation of detoxification of compounds via dialysis, thus contributing to drug safety. Implantation of the prosthesis was uncomplicated. Connection to the extracorporeal circulation was achieved via catheters and maintained using a pump with an output of up to 300 ml/min. This enabled maintenance of extracorporeal circulation for several hours without clinical impairment to the animals. The AV-shunts remained functional for between 8 and 253 days (mean 112.3 days).
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