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Phenylbutazone (PBZ) is a nonsteroidal antiinflammatory drug (NSAID) that is not commonly prescribed due to the high incidence of serious adverse reactions. However, it is still used extensively in equine medicine, and is readily available to those employed in the care and management of horses. Such
Two episodes of acute aflatoxin poisoning in horses suggest that horses are susceptible to the toxic effects of this mycotoxin. Lesions associated with exposure to aflatoxin included encephalomalacia of cerebral hemispheres, fatty degeneration, necrosis, bile duct hyperplasia, fibrosis of the liver,
Although primary coagulopathies are rare in horses, changes in coagulation and fibrinolysis are commonly associated with inflammatory diseases. A clear understanding of the pathophysiology of normal and abnormal hemostasis is required to be able to choose and interpret diagnostic tests evaluating
Acute hemorrhagic myelopathy developed in the sixth cervical to the eighth thoracic spinal cord segments of a 1-year-old Quarter Horse colt that was castrated under general anesthesia while in dorsal recumbency. Clinical signs were consistent with severe transverse myelopathy caudal to the brachial
A series of 10 haemorrhagic polyps of the equine nasal cavity is described. The lesions show haematoma formation, abundant haemosiderin in macrophages and giant cells, and organising fibrous tissue. In one case, angiomatoid lesions were observed in the mucous membrane of the paranasal sinuses and it
Endoscopic examinations of the upper respiratory tract were done on 92 of 314 Standardbred horses that raced one or more times at 4 consecutive, weekly race meetings. Although participation was voluntary, the characteristics of the population of horses examined were not statistically different from
A 12-year-old Standard-bred mare and a 21-year-old Quarter Horse gelding were treated for signs of abdominal pain and sweating. The mare also had muscle fasciculations, azotemia, and ataxia, and was euthanatized after signs of pain became refractory to analgesics. The gelding died when ventricular
Treatment of acute hemorrhage in the horse involves targeted medical management and also may involve surgical stabilization. This article provides an approach to the initial stabilization and information on available topical hemostats. The practice of blood collection and transfusion is also
An 8-year-old Thoroughbred gelding with colic was anesthetized for surgical correction of right dorsal displacement of the ascending colon. Removal of the nasogastric tube at the end of surgery resulted in hemorrhage from the nares and loss of 24 L of blood. Treatment included administration of
METHODS
5 aged (≥ 17 years old) horses developed life-threatening Internal hemorrhage following IV administration of phenylephrine at 3 hospitals.
RESULTS
All 5 horses developed severe hemothorax, hemoabdomen, or both within minutes to hours following administration of phenylephrine.
RESULTS
Four of
An 18-month-old male Belgian horse was anesthetized and placed in dorsal recumbency for cryptorchidectomy. Xylazine was used for sedation and guaifenesin with thiamylal for induction of anesthesia. A surgical plane of anesthesia was maintained with halothane. During anesthesia, second-degree