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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.
Medical treatment of horses with deep digital flexor tendon injuries diagnosed with high-field-strength magnetic resonance imaging: 118 cases (2000-2010).
Journal of the American Veterinary Medical Association    November 26, 2015   Volume 247, Issue 11 1309-1318 doi: 10.2460/javma.247.11.1309
Lutter JD, Schneider RK, Sampson SN, Cary JA, Roberts GD, Vahl CI.To describe the location and severity of deep digital flexor tendon (DDFT) lesions diagnosed by means of high-field-strength MRI in horses and to identify variables associated with return to activity following medical treatment. Methods: Retrospective case series. Methods: 118 horses. Methods: Medical records of horses with DDFT injury diagnosed with MRI over a 10-year period (2000-2010) and treated medically (intrasynovial administration of corticosteroids and sodium hyaluronan, rest and rehabilitation, or both) were reviewed. History, signalment, use, results of lameness examination and diag...
Hairy cell-like leukemia in a 9-year-old Friesian mare.
The veterinary quarterly    November 25, 2015   Volume 36, Issue 2 105-108 doi: 10.1080/01652176.2015.1110427
Achten-Weiler M, Veldhuis Kroeze EJ, Boerma S, van der Kolk JH.No abstract available
Prevalence factors associated with equine herpesvirus type 1 infection in equids with upper respiratory tract infection and/or acute onset of neurological signs from 2008 to 2014.
The Veterinary record    November 25, 2015   Volume 178, Issue 3 70 doi: 10.1136/vr.103424
Pusterla N, Mapes S, Akana N, Barnett C, MacKenzie C, Gaughan E, Craig B, Chappell D, Vaala W.The objective of the present case-control study was to determine prevalence factors associated with the detection of equine herpesvirus type 1 (EHV-1) by quantitative PCR (qPCR) in horses presented to veterinarians with clinical signs related to an upper respiratory tract infection and/or acute onset of neurological disease from March 2008 to December 2014. Nasal secretions and whole blood from 4228 equids with acute onset of fever, respiratory signs and/or neurological deficits were tested by qPCR for EHV-1. Categorical analyses were performed to determine the association between observations...
Canaliculosinostomy as a Long-Term Treatment of Seven Horses for Permanent Obstruction of the Nasolacrimal Duct.
Veterinary surgery : VS    November 23, 2015   Volume 45, Issue 1 110-114 doi: 10.1111/vsu.12421
Brink P, Schumacher J.To describe canaliculosinostomy performed to resolve epiphora caused by nasolacrimal duct obstruction and to report the outcome of horses undergoing this procedure. Methods: Case series. Methods: Seven horses with uni- or bilateral nasolacrimal duct obstruction. Methods: The ventral lacrimal punctum and canaliculus were expanded with catheters of increasing diameter until a 14 gauge, Jamshedi needle could be passed into and through the lacrimal sac into the caudal maxillary sinus. One end of a plastic tube was inserted through the needle into the sinus, and the needle was withdrawn over the tu...
Severe cutaneous vasculitis: an unusual complication of equine antithymocyte globulin treatment.
QJM : monthly journal of the Association of Physicians    November 11, 2015   Volume 109, Issue 6 411-412 doi: 10.1093/qjmed/hcv209
Vinod KV, Charles D, Hitha B, Radhakrishna P, Dutta TK.No abstract available
Magnetic resonance imaging assisted management in five cases of suspected quittor.
Veterinary and comparative orthopaedics and traumatology : V.C.O.T    November 9, 2015   Volume 29, Issue 1 75-82 doi: 10.3415/VCOT-15-02-0039
Meehan LJ, Taylor SE, Labens R, Cillán-García E.Assessment of the usefulness of magnetic resonance imaging (MRI) in treatment planning in suspected cases of quittor in the horse. Methods: Five horses with chronic discharging tracts at the level of the foot underwent MRI for treatment planning. Results: The MRI examination revealed variable involvement of soft tissue and osseous structures of the foot in addition to abnormalities of the ungular cartilages in all cases. In two cases, follow-up MRI examination was performed. Four of five horses had a successful outcome, with three of these undergoing only one surgical procedure and one being m...
Listeria monocytogenes associated kerato-conjunctivitis in four horses in Norway.
Acta veterinaria Scandinavica    November 9, 2015   Volume 57 76 doi: 10.1186/s13028-015-0167-2
Revold T, Abayneh T, Brun-Hansen H, Kleppe SL, Ropstad EO, Hellings RA, Sørum H.Listeria monocytogenes has been reported to cause various infectious diseases in both humans and animals. More rarely, ocular infections have been reported. To our knowledge, only two cases of Listeria keratitis have been described in horses. We report kerato-conjunctivitis in four Norwegian horses associated with L. monocytogenes. Clinically, all cases were presented with recurrent unilateral kerato-conjunctivitis. L. monocytogenes bacteria were isolated from swab samples from all cases, and cytology carried out in 3 cases was indicative of L. monocytogenes infection. The present report descr...
Equine vet reprimanded for prepurchase examination and certification errors.
The Veterinary record    November 7, 2015   Volume 177, Issue 18 456 doi: 10.1136/vr.h5845
No abstract available
Acquired multiple acyl-CoA dehydrogenase deficiency and marked selenium deficiency causing severe rhabdomyolysis in a horse.
The Canadian veterinary journal = La revue veterinaire canadienne    November 6, 2015   Volume 56, Issue 11 1166-1171 
Gomez DE, Valberg SJ, Magdesian KG, Hanna PE, Lofstedt J.This report describes a case of severe rhabdomyolysis in a pregnant mare associated with histopathologic and biochemical features of both selenium deficiency and acquired multiple acyl-CoA dehydrogenase deficiency (MADD) due to seasonal pasture myopathy (SPM). This case highlights the importance of assessing plasma selenium levels in horses with clinical signs of pasture myopathy as this deficiency may be a contributing or exacerbating factor. Déficience multiple acquise de déshydrogénase acyl-CoA et carence en sélénium marquée causant une rhabdomyolyse grave chez un cheval. Ce rapport d...
A Non-Reciprocal Autosomal Translocation 64,XX, t(4;10)(q21;p15) in an Arabian Mare with Repeated Early Embryonic Loss.
Reproduction in domestic animals = Zuchthygiene    November 6, 2015   Volume 51, Issue 1 171-174 doi: 10.1111/rda.12636
Ghosh S, Das PJ, Avila F, Thwaits BK, Chowdhary BP, Raudsepp T.Balanced autosomal translocations are a known cause for repeated early embryonic loss (REEL) in horses. In most cases, carriers of such translocations are phenotypically normal, but the chromosomal aberration negatively affects gametogenesis giving rise to both genetically balanced and unbalanced gametes. The latter, if involved in fertilization, result in REEL, whereas gametes with the balanced form of translocation will pass the defect into next generation. Therefore, in order to reduce the incidence of REEL, identification of translocation carriers is critical. Here, we report about a pheno...
Chronic active interstitial pancreatitis as a cause of transverse colonic obstruction and colic in a horse.
The Canadian veterinary journal = La revue veterinaire canadienne    November 6, 2015   Volume 56, Issue 11 1177-1180 
Lohmann KL, Allen AL.A mature Quarter horse was euthanized following colic of 3 days duration. Postmortem, the large intestine, except the descending colon, was diffusely distended and associated with adhesion of the transverse colon to the pancreas, which had changes consistent with chronic active interstitial pancreatitis. Other lesions included hepatic fibrosis, erosive gastritis, and bilateral adrenal cortical hyperplasia. Pancréatite interstitielle chronique active comme cause d’une obstruction du côlon transversal et de coliques chez un cheval. Un cheval Quarter horse adulte a été euthanasié après de...
Association between inflammatory airway disease of horses and exposure to respiratory viruses: a case control study.
Multidisciplinary respiratory medicine    November 3, 2015   Volume 10 33 doi: 10.1186/s40248-015-0030-3
Houtsma A, Bedenice D, Pusterla N, Pugliese B, Mapes S, Hoffman AM, Paxson J, Rozanski E, Mukherjee J, Wigley M, Mazan MR.Inflammatory airway disease (IAD) in horses, similar to asthma in humans, is a common cause of chronic poor respiratory health and exercise intolerance due to airway inflammation and exaggerated airway constrictive responses. Human rhinovirus is an important trigger for the development of asthma; a similar role for viral respiratory disease in equine IAD has not been established yet. Methods: In a case-control study, horses with IAD (n = 24) were compared to control animals from comparable stabling environments (n = 14). Horses were classified using pulmonary function testing and bronc...
Equine eosinophilic keratitis in horses: 28 cases (2003-2013).
Clinical case reports    November 2, 2015   Volume 3, Issue 12 1000-1006 doi: 10.1002/ccr3.350
Edwards S, Clode AB, Gilger BC.This retrospective case series evaluates husbandry and environmental conditions in relation to eosinophilic keratitis in horses. While no associations were found between disease and husbandry practices or specific environmental factors such as humidity or temperature, an increased prevalence of presentation in summer months was identified in this population of horses.
Theriogenology Question of the Month. Neoplasms of the penis and testis.
Journal of the American Veterinary Medical Association    November 1, 2015   Volume 247, Issue 10 1105-1108 doi: 10.2460/javma.247.10.1105
Scott CJ, Christensen BW, Dechant JE, Espinosa P, LaDouceur EE.No abstract available
Tenogenically Induced Allogeneic Mesenchymal Stem Cells for the Treatment of Proximal Suspensory Ligament Desmitis in a Horse.
Frontiers in veterinary science    October 22, 2015   Volume 2 49 doi: 10.3389/fvets.2015.00049
Vandenberghe A, Broeckx SY, Beerts C, Seys B, Zimmerman M, Verweire I, Suls M, Spaas JH.Suspensory ligament injuries are a common injury in sport horses, especially in competing dressage horses. Because of the poor healing of chronic recalcitrant tendon injuries, this represents a major problem in the rehabilitation of sport horses and often compromises the return to the initial performance level. Stem cells are considered as a novel treatment for different pathologies in horses and humans. Autologous mesenchymal stem cells (MSCs) are well known for their use in the treatment of tendinopathies; however, recent studies report a safe use of allogeneic MSCs for different orthopedic ...
Acute pancreatitis following granulosa cell tumor removal in a mare.
The Canadian veterinary journal = La revue veterinaire canadienne    October 21, 2015   Volume 56, Issue 10 1049-1052 
Gomez DE, Radtke CL, Russell LA, Lopez A, Wichtel MW.Acute pancreatitis is a rare disease in horses and is often associated with gastrointestinal disorders. Accurate diagnosis is challenging due to the presence of nonspecific clinical signs. This case represents the first documentation of acute pancreatitis in a horse following surgery of the reproductive tract. La pancréatite aiguë est une maladie rare chez les chevaux et est souvent associée aux troubles gastro-intestinaux. Un diagnostic exact est difficile en raison de la présence de signes cliniques non spécifiques. Ce cas représente la première fois qu’une pancréatite aiguë est ...
What Is Your Diagnosis? Acute, severe trauma resulting in multiple fractures and complete luxation of the thoracic vertebral column.
Journal of the American Veterinary Medical Association    October 21, 2015   Volume 247, Issue 9 1011-1013 doi: 10.2460/javma.247.9.1011
Liepman RS, Burns TA, Mulligan KA, Drost WT.No abstract available
Arrhythmogenic right ventricular cardiomyopathy secondary to adipose infiltration as a cause of episodic collapse in a horse.
Irish veterinary journal    October 19, 2015   Volume 68 24 doi: 10.1186/s13620-015-0052-3
Raftery AG, Garcia NC, Thompson H, Sutton DG.A 15-year-old Clydesdale cross gelding was investigated and managed over a 2-year period for intermittent collapse. The horse presented initially after an observed episode of collapse at rest, and had a resting tachycardia, elevated Cardiac Troponin I and polycythaemia. Multiple dysrhythmias were detected on telemetric electrocardiography. Vital parameters, cardiac rhythm and red cell count returned to reference range with prolonged rest but further resting syncopal episodes were observed, and due to safety concerns and limited treatment options the horse was euthanased. Post mortem evaluation...
Cheek Tooth Extraction Via a Minimally Invasive Transbuccal Approach and Intradental Screw Placement in 54 Equids.
Veterinary surgery : VS    October 12, 2015   Volume 44, Issue 8 1012-1020 doi: 10.1111/vsu.12409
Langeneckert F, Witte T, Schellenberger F, Czech C, Aebischer D, Vidondo B, Koch C.To describe (1) preoperative findings and surgical technique, (2) intraoperative difficulties, and (3) postoperative complications and long-term outcome of equine cheek tooth extraction using a minimally invasive transbuccal screw extraction (MITSE) technique. Methods: Retrospective case series. Methods: Fifty-four equids; 50 horses, 3 ponies, and 1 mule. Methods: Fifty-eight MITSE procedures were performed to extract cheek teeth in 54 equids. Peri- and intraoperative difficulties, as well as short- (<1 month) and long-term (>6 months) postoperative complications were recorded. Followup inform...
Risk Factors Associated With Survival to Hospital Discharge of 54 Horses With Fractures of the Radius.
Veterinary surgery : VS    October 12, 2015   Volume 44, Issue 8 1036-1041 doi: 10.1111/vsu.12412
Stewart S, Richardson D, Boston R, Schaer TP.To determine (1) survival to discharge of horses with radial fractures (excluding osteochondral fragmentation of the distal aspect of the radius and stress fractures); and (2) risk factors affecting survival to hospital discharge in conservative and surgically managed fractures. Methods: Case series. Methods: Horses (n = 54). Methods: Medical records (1990-June 2012) and radiographs of horses admitted with radial fracture were reviewed. Horses with osteochondral fragmentation of the distal aspect of the radius or stress fractures were excluded. Evaluated risk factors were age, fracture configu...
ULTRASONOGRAPHIC FINDINGS IN 13 HORSES WITH LYMPHOMA. Janvier V, Evrard L, Cerri S, Gougnard A, Busoni V.Ultrasonography and radiography are commonly used for staging of lymphoma in horses, however there is little published information on imaging characteristics for horses with confirmed disease. The purpose of this retrospective, case series study was to describe ultrasonographic and radiographic findings for a group of horses with a confirmed diagnosis of lymphoma. A total of 13 horses were sampled. Lymphadenopathy (8/13), peritoneal effusion (6/13), splenic (6/13), and hepatic (5/13) lesions were the most frequently identified. The predominant splenic and hepatic ultrasonographic lesions were ...
Rhabdomyolysis Secondary to Clenbuterol Use and Exercise.
The Journal of emergency medicine    October 9, 2015   Volume 50, Issue 2 e71-e74 doi: 10.1016/j.jemermed.2015.09.006
Grimmer NM, Gimbar RP, Bursua A, Patel M.The literature regarding rhabdomyolysis secondary to illicit drug use is sparse. Clenbuterol is a bronchodilator approved for veterinary use, which in high doses can increase protein deposition and lipolysis similarly to anabolic steroids, and is thereby abused for bodybuilding and weight loss effects. Clenbuterol has previously been described in case reports to be cardiotoxic, with patient presentations similar to overdoses of sympathomimetic substances, but reports of rhabdomyolysis are limited to a single case series in horses. Methods: We report the first case of rhabdomyolysis secondary t...
Radiographic, computed tomographic and surgical anatomy of the equine sphenopalatine sinus in normal and diseased horses.
Equine veterinary journal    October 9, 2015   Volume 48, Issue 5 578-584 doi: 10.1111/evj.12492
Tucker R, Windley ZE, Abernethy AD, Witte TH, Fiske-Jackson AR, Turner S, Smith LJ, Perkins JD.Knowledge of imaging anatomy, surgical anatomy and disorders affecting the sphenopalatine sinus are currently lacking. Objective: To describe the computed tomographic (CT) and surgical anatomy of the sphenopalatine sinus and diagnosis, treatment and outcome in clinical cases with sphenopalatine sinus disease. Methods: Cadaver observational study and retrospective case series. Methods: The sphenopalatine sinuses of 10 normal cadaver heads were examined with digital radiography, CT and sinoscopic examination prior to anatomical sectioning. Sphenopalatine sinus anatomy was described and compared ...
Mature teratoma arising from an undescended testis in a horse: comparison between ultrasonographic and morphological features.
Folia morphologica    October 2, 2015   Volume 75, Issue 2 211-215 doi: 10.5603/FM.a2015.0088
Pasolini MP, Della Valle G, Pagano TB, Miele F, Paciello O, Fatone G, Greco M.Scant information is available on the ultrasonographic appearance of different testicular tumours in the stallion. Preoperative ultrasound imaging and gross and microscopic features of a testicular teratoma in a horse is described. An asymptomatic 4 years old cryptorchid Arabian horse was admitted for orchiectomy. Combined transabdominal and inguinal ultrasound examination revealed a large complex ovoid mass, containing both solid and cystic elements with internal echoes, located dorsally to the superficial inguinal ring. Two main hypoechoic cavities divided by a linear hyperechoic septum were...
Methicillin-resistant Staphylococcus aureus ulcerative keratitis in a Thoroughbred racehorse.
Journal of equine science    September 30, 2015   Volume 26, Issue 3 95-98 doi: 10.1294/jes.26.95
Kuroda T, Kinoshita Y, Niwa H, Mizobe F, Ueno T, Kuwano A, Hatazoe T, Hobo S.We report the first case of methicillin-resistant Staphylococcus aureus (MRSA) keratitis in a racehorse. A 5-year-old mare developed punctate keratitis after racing. The corneal ulcer continued to expand despite ophthalmic antimicrobial therapy. On day 6, a conjunctival graft surgery was performed. The mare was euthanized, following colitis and laminitis development on day 10. MRSA was isolated from the corneal swab taken at the time of euthanasia. Immunohistochemical analysis demonstrated gram-positive and anti-S. aureus monoclonal antibody-positive cocci infiltration of the corneal stroma; a...
ECG of the Month. Persistent atrial tachycardia after cardioversion in a horse.
Journal of the American Veterinary Medical Association    September 19, 2015   Volume 247, Issue 7 751-753 doi: 10.2460/javma.247.7.751
Barrell EA, Fiorenza LR, Perkins GA, Kraus MS.No abstract available
Radiographic characterization of ossification of the ungular cartilages in horses: 271 cases (2005-2012).
Journal of the American Veterinary Medical Association    September 19, 2015   Volume 247, Issue 7 801-811 doi: 10.2460/javma.247.7.801
Jones LE, Dyson SJ.To describe in detail the radiographic appearance of ossified ungular cartilages in horses and to evaluate the usefulness of a flexed dorsolateral-palmaromedial oblique (flexed oblique) radiographic view in evaluating the ungular cartilages. Methods: Retrospective case series. Sample-Radiographs of 1,255 front feet of horses. Methods: Ossification of the ungular cartilages was graded during evaluation of radiographs on a scale from 0 to 5; feet with cartilages with an ossification grade ≥ 2 were included (386 feet [271 horses]). The shape (straight, curved outward or inward, and dorsopalmar ...
Solar keratoma: An atypical case.
Journal of the South African Veterinary Association    September 18, 2015   Volume 86, Issue 1 1257 doi: 10.4102/jsava.v86i1.1257
Miller SM, Katzwinkel RH.This case report shows that keratomas can occur in both hind feet of equine patients and should be considered as a diagnosis for long-standing, intermittent lameness localised to the hooves. A Thoroughbred racehorse presented with long-standing abscessation of the right hind hoof. Owing to the long-standing nature, the abscess draining tract was surgically explored. A focal mass was found within the solar horn. Histopathology revealed the mass to be a keratoma. A similar mass was removed from the left hind hoof a few months later after similar presenting signs. This case shows that keratomas c...
Clinical Research Abstracts of the British Equine Veterinary Association Congress 2015.
Equine veterinary journal    September 17, 2015   Volume 47 Suppl 48 28 doi: 10.1111/evj.12486_63
Lotstra RJ, van den Broek J, Power T, Marr CM, Wijnberg ID.Atrial fibrillation is a common equine arrhythmia. Quinidine alone, or with digoxin are common treatments. Studies on outcome in Warmblood populations in which duration of the AF is often unknown are limited. Objective: To identify the factors that are associated with the success of full treatment cardioversion with oral medication, and establish whether there are differences in these factors between institutions. Methods: Retrospective case series using patient records of Equine University Clinic of Utrecht University and Rossdales Equine Hospital, Newmarket. Methods: Forty-nine horses treate...
Locking Compression Plate Fixation of Equine Tarsal Subluxations.
Veterinary surgery : VS    September 17, 2015   Volume 44, Issue 8 949-956 doi: 10.1111/vsu.12400
Keller SA, Fürst AE, Kircher P, Ringer S, Kuemmerle JM.To report the clinical findings and outcome of locking compression plate (LCP) fixation of tarsal subluxations in horses. Methods: Retrospective case series. Methods: Horses (n = 3) and ponies (2). Methods: All horses and ponies diagnosed with tarsal subluxations and treated with LCP fixation at our institution between 2011 and 2013 were included. Data were collected from the medical records, including all radiographic and computed tomographic (CT) studies and reviewed. Long-term (>1 year) followup examination, including owner interview, and clinical and radiographic examinations were perfo...
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