Chronic vascular catheterisation of the koala and the rabbit
GM CLEVA,1 GM STONE,1 DL EVANS1 and RK DICKENS2
1Department of Animal Science, University of Sydney, New South Wales 2006
2Blacktown Veterinary Hospital, Blacktown. New South Wales 2148
Vascular access ports were surgically placed, first in rabbits maintained under laboratory conditions, and then in koalas maintained in a wildlife park. The ports remained patent for 9 months in rabbits and for up to 13 months in the koalas and were removed successfully. They allowed collection of blood samples without assistance or disturbance in koalas, and without stress as reflected by plasma cortisol concentration. The use of retention rings on the cannula tubing is recommended.