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Topic:Case Reports
Case reports in equine medicine provide detailed accounts of individual horses' clinical presentations, diagnostic processes, treatments, and outcomes. These reports are valuable for documenting rare conditions, novel treatment approaches, or unique clinical insights that may not be captured in larger studies. By focusing on individual cases, these reports contribute to the broader understanding of equine health and disease management. They often include comprehensive information on the horse's history, clinical findings, diagnostic tests, therapeutic interventions, and follow-up evaluations. This page assembles peer-reviewed case reports and scholarly articles that explore diverse aspects of equine health, offering insights into specific medical scenarios and their implications for veterinary practice.
Vestibular disease, and its relationship to facial paralysis in the horse: a clinical study of 7 cases. The signs observed in 6 cases of peripheral vestibular disease included incoordination, head tilt and nystagmus. The intensity of the signs varied greatly with duration of the disease, and in 3 cases facial paralysis was also present. Tympanosclerosis was demonstrable in all cases subject to radiology. Trauma was the causative factor in most cases. The causes of, and relationships between, vestibular dysfunction and concomitant facial paralysis are discussed. The exact etiology of the tympanosclerosis is unknown.
Paroxysmal atrial fibrillation in a racehorse. A 4-year-old thoroughbred stallion with a history of loss of racing form was studied over a period of approximately 7 months. At the initial examination he showed positive T waves in 1 chest lead and wandering of the pacemaker. This was followed by an episode of paroxysmal atrial fibrillation which disappeared spontaneously and was replaced by significant T wave changes in all the chest leads. During a period when these changes persisted, there was progressive lengthening of the P wave and the P-R interval. Because the last ECG showed evidence of intra-atrial block, first degree A-V block and ...
An epidemic of venereal infection in thoroughbreds. The clinical pattern, bacteriological investigation and subsequent treatment of a serious outbreak of venereal disease in stud farms on both sides of the Irish Sea is described. The consistency with which Bacillus proteus was isolated from infected mares and stallions was remarkable. Prompt treatment with ampicillin, to which the organism was sensitive in vitro, eradicated the disease. No local treatment was applied.
Arrhenoblastoma in a mare. An ovarian neoplasm measuring 10 by 8 by 6 cm was surgically removed from a 14-year-old Appaloosa mare. For 2 years prior to surgery, the mare had manifested marked behavioral changes, becoming aggressive toward other broodmares. Histologically, the tumor was found to be an arrhenoblastoma. Preoperative endocrinologic findings (high serum testosterone and low serum estradiol concentrations) supported the diagnosis.
Syringomyelia in a thoroughbred foal. The report describes a case of myelodysplasia involing spinal cord segments C7 to T8 of a 5 month old part-Thoroughbred foal. There was a single extensive syringomyelic and hydromyelic cavity which extended from the seventh cervical segment (C7), to the seventh thoracic segment (T7), abnormal size and shape of central canal, and disorderly differentiation of the grey and white matter. The cause of the defect is unknown.
[Fracture of the 1st phalanx in the horse]. Of 28 fractures of the first phalanx 21 were treated with osteosynthesis; one was treated conservatively. 2 to 4 compression screws have been applied, while the distal part of the limb was immobilized by a light cast bandage for 8 days. The implants were removed 2 to 3 months post operationem. All patients are again used in sports.
The identification of Babesia equi in Australia. A Babesia parasite, isolated from the blood of a horse at Bowral, New South Wales, was identified on the basis of its morphological features, host specificity and serological reactions, as Babesia equi (Laveran 1901). The case was originally reported by Churchill and Best (1976, Aust. vet. J. 52: 487) and is the first record of equine babesiosis in Australia. In preliminary studies, the organism produced only a mild disease in an intact horse, but caused the typical clinical syndrome of acute babesiosis in a splenectomised horse, which died 19 days after the intravenous inoculation of the para...
Familial methaemoglobinaemia and haemolytic anaemia in the horse associated with decreased erythrocytic glutathione reductase and glutathione. A trotter mare with a history of poor performance was found to have methaemoglobinaemia and haemolytic anaemia associated with decreased erythrocyte glutathione reductase and glutathione levels. The mare's dam, which also had a history of poor performance, was subsequently found to be similarly affected.
Osteochondrosis dissecans of the head of the humerus in two foals. Two cases of osteochondrosis dissecans of the head of the humerus in foals are described. The lesions were gross compared with those seen in dogs. Arthrotomy and curettage of the affected area resulted in marked clinical improvement.
Chronic tenosynovitis of the extensor tendons and tendon sheaths of the carpal region in the horse. Seven cases of chronic tenosynovitis affecting the extensor carpi radialis or lateral digital extensor tendon and their sheaths are described. All cases were chronic and in 4 of the cases previous treatment by drainage and local corticosteroid injection had been ineffective. Surgical exploration of 6 cases demonstrated a distinct lesion and specific surgical treatment was carried out.
A case of primary lymphoid leukaemia in a horse. Progressive leukaemic changes and a persistent anaemia were demonstrated in the blood of a 7 year old gelding, which had shown early signs of lowered performance and unthriftiness, and later developed dependent oedema and became dull and listless. The total leucocyte count, initially within the normal range although reflecting an absolute lymphocytosis, increased fourfold in 6 days from excessive lymphoid production involving predominantly the more immature cell types; lymphoblasts, prolymphocytes and large lymphocytes. The severity of the condition was confirmed by bone marrow biopsy.
Intramural esophageal cyst in a horse. A yearling Quarter Horse colt was examined because of intermittent esophageal obstruction. A soft tissue mass was palpated in the cervical portion of the esophagus. Plain and contrast radiography and esophagoscopy were utilized to confirm the location of the lesion in the esophageal wall. Surgical exploration and removal of the mass was performed through a ventral midline cervical incision. Histologically, the mass was a keratinizing squamous epithelial inclusion cyst.
Diagnosis and treatment of “verminous aneurysm” formation in the horse. The clinical manifestations, diagnosis and differential diagnosis of "verminous aneurysm" formation at the root of the cranial mesenteric artery and coeliac artery resulting from Strongylus vulgaris larvae migration are described. Forty-nine of 57 cases were successfully treated with low molecular weight dextran (dextran 70).
Disseminated septic meningitis in a mare. Physical, neurologic, and clinicopathologic findings in a 3-year-old female Morgan horse with anorexia and nasal discharge suggested suppurative meningitis. Necropsy findings substantiated the tentative diagnosis. Actinomyces sp was cultured from a meningeal abscess surrounding the pituitary gland and from resolving lung abscesses.
Ischemic myelopathy caused by fibrocartilaginous emboli in a horse. A horse that suddenly became recumbent had a focal ischemic infarct of the spinal cord between C6 and C7. The infarct was attributed to multiple fibrocartilaginous emboli. Adherence of fibrocartilaginous debris to the outer surface of the dura was interpreted as evidence that intervertebral disc degeneration and displacement of the nucleus pulposus had occurred and that the emboli arose from the disc.
