The occurence, the diagnosis, and the treatment of anticoagulant roden
ticide poisoning in dogs in the Netherlands was evaluated by a survey
among Dutch veterinarians carried out by the National Poisons Control
Center (NPCC). The survey included information on 54 dogs, 32 being tr
eated by veterinarians who consulted the NPCC and 22 that were admitte
d to the Utrecht University Clinic for Companion Animals (UUCCA). The
poisons that were suspected were brodifacoum (n=19), bromadiolone (n=1
4), difenacoum (n=8), difethialone (n=6) and chlorophacinone (n=1). In
6 dogs the identity of the poison was unknown. Of 31 dogs with hemorr
hages, 2 died shortly after presentation to practitioners and 2 died s
hortly after admission to the UUCCA. Signs of bleeding occurred especi
ally in poisoning by brodifacoum (n=16). In all but one of the dogs wi
thout hemorrhages, the intake of poison had taken place within 24 hour
s before presentation. The method of treatment varied, with the induct
ion of vomiting and the use of vitamin K mentioned most. The choice of
therapy was determined by the length of time after intake of the pois
on, the clinical signs and whether or not an anticoagulant toxicosis w
as suspected at the time of the initial examination. These findings pr
ovide the basis for discussion of several aspects of diagnosis and tre
atment.