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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.
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.
An outbreak of Swainsona poisoning in horses. On 6 properties in south-western Queensland an outbreak of nervous disease occurred horses due to ingestion of Swainsonia (Darling pea). Loss of condition, depression, hyperaesthesia and hyperexcitability were seen in affected horses. At autopsy of 2 horses generalised c ytoplasmic vacuolation was seen in the neurones of the central nervous system and in the liver, adrenal and thyroid. The clinical and pathological features were similar to those described in horses suffering from Swainsona poisoning in Australia and Astragalus and Oxytropis in North America.
RAST in the diagnosis of hypersensitivity to horse allergens. A comparison with clinical history and in vivo tests. Case history, skin tests and RAST were compared in a group (n = 40) of children with a history suggesting allergy to horses and in a group (n = 43) in whom there was no suspicion of hypersensitivity to horses. There was an agreement of 91% between case history and prick test. The same magnitude of agreement was found between case history and RAST (89%), and the agreement between RAST and prick test was 90%. The results of this investigation are clearly in contrast to earlier earlier reports, in that there was a very good correlation between prick test, RAST and case history. The results sugges...
Esophageal patch grafting as a treatment for esophageal stricture in a horse. Esophageal patch grafting, using the sternocephalicus muscle, was used for treatment of cervical esophageal stricture in a mare. The mare was maintained during the initial healing phase by total parenteral nutrition.
Recurrent convulsions in a thoroughbred foal: management and treatment. A thoroughbred foal had a convulsive attack 12 hours after birth followed by further convulsions on the 10th, 11th and 12th days after birth. It was treated successfully by medication with primidone, feeding by stomach tube and careful nursing.
Fibrous foreign body impaction colic in young horses. OF 207 horses with colic seen over a 36-month period, 10 were determined to have impaction colic caused by ingestion of synthetic fencing material. In 6 cases, there was history of exposure to rubberized fencing products. All horses affected were less than or equal to 3 years of age, had signs of mild to moderate abdominal pain, and were unresponsive to usual symptomatic therapy. At surgery, each horse was found to have an impaction involving the distal right dorsal colon, transverse colon, or small colon, and in some cases, all 3 bowel segments. In 9 cases, the involved segment of bowel could...
Lactic acid concentration in peritoneal fluid of normal and diseased horses. Peritoneal fluid from each of 15 clinically healthy horses and five horses with acute abdominal disease was evaluated for lactic acid concentration. The normal range was 2-7--13-4 mg/dl. Simultaneous blood and peritoneal fluid samples from healthy horses revealed consistently lower lactic acid concentrations in the peritoneal fluid than in the blood, whereas peritoneal fluid lactic acid levels were consistently greater than blood levels in the diseased horses. The diseased horses had highly significant (P less than 0-005) increases in both blood and peritoneal fluid lactic acid concentrations ...
Experimental Parascaris equorum infection of foals. Six worm-free pony foals, two to four months old, were infected with parascaris equorum eggs using three different dosage regimes and killed at either 40 or 95-100 days after infection. Coughing and a circulating eosinophilia were features of large infections from which only a small number of worms developed to maturity. In small infections a high percentage of the parasites matured in the small intestine and this was associated with unthriftiness. Pre-patent periods of 80 and 83 days were recorded.
Anaphylactoid purpura in a horse. An 8-year-old gelding with a long-standing, streptococcal respiratory infection developed dyspnoea and colic. Laparotomy disclosed numerous, discrete, hemorrhagic, thick areas of necrosis throughout the intestinal tract. At postmortem examination similar lesions were seen in the laryngeal mucosa and in many skeletal muscles. Microscopically these lesions had massive necrosis and hemorrhage with a leucocytoclastic vasculitis in adjacent tissue. This condition resembled anaphylactoid purpura (Henoch-Schönlein disease) in man. Fungal infection was ruled out by special stains which failed to show...
Bone growth in foals and epiphyseal compression. Limb angulation in foals may be due to defects in epiphyseal growth plates. The present state of knowledge concerning rate of growth in foals and differences in growth of different epiphyseal plates is reviewed and the importance of accurate knowledge of these parameters in treatment of angulation by unilateral retardation of an epiphyseal growth plate is stressed. Retardation of epiphyseal plate growth by compression wiring is described and its advantages in comparison with staplings are suggested. Compression wiring was used in 3 cases in which age, bone width and the degree of angulation we...
