The occurrence of oleander toxicity in a horse
2009
Bazargani, T.T., Professor of Large Animal Internal Medicine, Department of Clinical Science-University of TehranTehran,Iran | Moaddab, S.H., Postgraduate of Large Animal Internal Medicine-Department of Clinical Science, Tehran, Iran | Torki, E., Postgraduate of Large Animal Internal Medicine-Department of ClinicaScience, University of Tehran,Tehran, Iran | Aghamohammadi, S. H., Graduate of Veterinary Medicine, University of Tehran, Tehran, Iran | Marjanmehr, M., Assistant Professor of Pathobiology Department, University of Tehran, Tehran, Iran
Oleander is originally a Mediterranean and Asian plant that is widely distributed in the world. Oleander has long been known to be poisonous to animal and human. All part of the plant either fresh or dried are toxic and contain cardiac glycosides. A tow years old horse was referred to the veterinary medical teaching and research hospital of Tehran university with a history of weakness and anorexia. The clinical signs included: Increased intensity of the heart sounds and electrocardiography showed sign of ventricular tachycardia. The next day, the arrhythmia changed into the bradycardia and ventricular escape rhythm. Postmortem histopathological findings showed: Necrosis and degeneration of myocardium. The access the animal to oleander and consumption of the plant was approved after investigation of the place that the horse was kept. Key words: Oleander, Horse, Electrocardiography
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