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Topic:Clinical Examination
Clinical examination in horses involves a systematic evaluation of the animal to assess its health status and identify any potential medical issues. This process typically includes a thorough physical assessment, which may cover observation of behavior and posture, palpation of body structures, auscultation of heart and lung sounds, and examination of the skin, eyes, and mucous membranes. Additional diagnostic tools such as thermography, endoscopy, or imaging techniques may be utilized to gather more detailed information. Clinical examination serves as a foundational step in veterinary diagnostics, aiding in the detection and management of diseases or injuries in horses. This page compiles peer-reviewed research studies and scholarly articles that explore methodologies, advancements, and findings related to clinical examination practices in equine medicine.
Clinical and microbiota alterations in performance horses undergoing long-distance transport. Transport-associated pneumonia contributes substantially to morbidity, impaired welfare, and economic loss in high-performance horses and may be associated with alterations in the respiratory microbiota. Objective: Examine the effect of long-distance transport on the respiratory microbiota and correlate changes in microbiota diversity and composition with systemic and airway inflammation. Methods: Seventeen client-owned performance horses transported from New England to Florida under optimized trailering conditions, and 12 non-traveling horses. Methods: Physical examination, blood testing, nas...
Comparison of Rectal and Intraoperative Findings in Horses with Colic. Per rectum examination (PRE) is commonly used in the triage of horses with acute abdominal pain, despite reports of associated risk factors for both horses and personnel, but its diagnostic accuracy is questionable. This multicenter, observational study aimed to evaluate the agreement between PRE findings and surgical findings obtained via exploratory laparotomy in horses with colic. A total of 201 cases from four equine referral hospitals across Europe were included. Rectal findings were categorized as primary (most likely cause of colic) or additional. Agreement with surgical findings was as...
Diagnostic Ultrasound of the Equine Liver. Ultrasound is readily available to most practitioners and can be used in a straightforward manner to assess the liver. The liver can be assessed for size, shape, echogenicity, and architecture. Findings such as masses, cysts, granulomas, and biliary distention can be relatively specific as to suspected disease process. Other findings may be nonspecific but are useful to confirm concerns and aid in refining differential diagnosis. Findings should be interpreted considering the clinicopathologic picture and sampling performed when appropriate. Ultrasound can and should be used to identify optima...
Validation of an improved insect bite hypersensitivity severity score for allergic equine insect bite hypersensitivity in horses. Insect bite hypersensitivity (IBH) is the most common allergic skin disease in horses, but existing clinical scoring systems lack extensive validation, limiting standardized disease monitoring and therapeutic evaluation. Objective: Develop and validate a standardized, sensitive, and reproducible clinical scoring system for IBH in horses. Methods: Forty-four privately-owned horses with clinically diagnosed IBH examined under field conditions in Switzerland. Methods: In this prospective field validation study, the equine IBH severity score (EqIS) integrates a lesion severity score and an area sc...
An Investigation of the Role of Ridden Exercise, Including Application of the Ridden Horse Pain Ethogram, in Pre-Purchase Examinations of Sports Horses. Many horses undergo a pre-purchase examination (PPE) prior to acquisition by a new owner; however, despite evidence that lameness and canter dysfunction may only be apparent during ridden exercise, ridden exercises assessing gait quality is not a routine part of PPEs. The objectives were to determine the influence of the results of ridden exercise on decision-making concerning risk assessment for purchase and to establish the long-term performance of horses. Twenty-five sports horses underwent PPEs including ridden exercises to assess gait quality and to apply the Ridden Horse Pain Ethogram (R...
Auscultatory findings and left atrial function as indicators of mitral valve regurgitation severity in horses. Mitral valve regurgitation (MR) is frequently detected in horses, but its classification and prognostication remain challenging. This study investigated whether auscultatory findings and left atrial function are associated with MR severity. Methods: Fifty controls (no/trivial MR) and 101 MR horses (58 mild, 36 moderate, seven severe) were retrospectively evaluated. All were in sinus rhythm and underwent auscultation and echocardiography. Mitral regurgitation severity was graded using a scoring system. Systolic murmur characteristics (duration, type and grade) were recorded. Left atrial functio...
Using a wearable electrocardiogram (ECG) patch adapted for 7-day monitoring in the horse. Arrhythmias can cause poor performance and sudden death in horses. Long-term (>24 h) electrocardiogram (ECG) monitoring has been used to identify arrhythmias in humans and is superior to short-term monitoring for transient arrhythmia detection. Televet is the current equine gold-standard ECG device. The Cardea SOLO™ (CS) is a single-use monitor with automated ECG analysis software allowing ECG monitoring for 7 days. Objective: Our objective was to validate the performance of the CS compared to the Televet. Methods: Method validation. Methods: ECGs were performed on 12 healthy horses s...
A point-based laminitis risk scoring system and machine learning framework for prediction of laminitis in horses. Laminitis is a painful and potentially life-threatening inflammatory condition of the equine hoof, and its detection remains a major challenge in veterinary practice. Although several risk factors have been reported, the prediction of the onset of laminitis in a subclinical stage using routine clinical data is still limited. This study aims to address this gap by developing an interpretable machine learning (ML) framework for the prediction of the risk of laminitis in horses. A point-based risk scoring system was first constructed using multivariate logistic regression to quantify the contribu...
Improving Inclusivity in the Curriculum via the Introduction of an Equine Industry-Specific Language eGlossary. The equine veterinary profession is frequently considered inaccessible to veterinary students who have had limited exposure to the equine industry. One of the perceived reasons for this inaccessibility is the use of what is often coined "horsey" language within the industry. If a student has limited experience of the equine industry, there is a potential language barrier to teaching, which may result in poor engagement with equine teaching and placements. The aim of this Teaching Tip is to describe the development and evaluation of a new teaching resource designed to demystify equine industry-...
Umbilical vein marsupialization in foals-short literature review. Umbilical remnant infections are common in neonatal foals and may involve one or more umbilical structures. Diagnosis relies on thorough clinical examination, ultrasonography, and hematologic evaluation. Standard care includes broad-spectrum antibiotics, with surgical resection if conservative therapy fails. Omphalophlebitis may extend to the liver, prompting consideration of umbilical vein marsupialization. Surgery is performed in dorsal recumbency with a fusiform incision around the umbilicus. The umbilical arteries and urachus are ligated and transected, with partial cystectomy when indicat...
Diagnostic criteria for equine thoracolumbar myofascial pain syndrome: A foundational study. Diagnostic criteria for myofascial pain syndrome (MPS) are well established in humans but remain underexplored in horses. This study aimed to identify which MPS clinical signs were present in the equine thoracolumbar region, assess internal coherence among clinical indicators, and explore the diagnostic relevance of owner-reported behavioural, signalment, management, and clinical variables. A population of 120 horses underwent a static physical assessment of the thoracolumbar region. Owner-reported horse behaviours were collected through a questionnaire. Taut band, hypersensitive spot, local t...
Synovial transcriptomic biomarkers predict structural severity in equine osteochondral fragment-induced experimental osteoarthritis. Develop a global joint score (GJS) reflecting equine osteoarthritis (OA) structural severity and identify clinical or molecular parameters predicting disease severity. Unassigned: A retrospective analysis was performed using data from horses (n = 104; 58 females and 46 geldings; 2 to 5 years old) undergoing experimental OA induction via surgical osteochondral fragment creation in the middle carpal joint and high-speed treadmill exercise over 70 days. Longitudinal measures included subjective lameness examinations (lameness, effusion, and flexion), synovial fluid (SF) and serum glycosaminoglyca...
Comparison of palpation and ultrasonography findings in supraspinous ligaments of horses. The purpose of this study was to evaluate the utility of palpation as a diagnostic tool for supraspinous ligament injuries in horses. Diagnosis of SSL injuries typically relies on a combination of clinical examination and ultrasonographic findings. To the authors' knowledge, no previous studies have specifically investigated palpation as a diagnostic measure for these injuries. Unassigned: This retrospective study analyzed data from 126 horses resented to the University Veterinary Teaching Hospital for back pathology. Inclusion criteria required horses to have a documented descriptive palpator...
Similar locomotor patterns across Quarter Horse disciplines inform lameness assessment. Lineage-based selection is central to the Quarter Horse industry and is often justified by the assumption that morphology determines locomotor function. However, objective evidence linking static conformation to discipline-specific locomotor behaviour under standardised conditions remains limited. Objective: To investigate whether morphological differences among Quarter Horse disciplines are associated with distinct locomotor patterns or whether locomotor function converges across disciplines despite morphological variation. Methods: Cross-sectional. Methods: Barrel racing, reining, and ranch ...
A multimodal approach to equine thoracolumbar myofascial pain: integrating clinical examination, AI-based gait analysis, and the ridden horse pain ethogram. Myofascial pain syndrome (MPS) is considered highly prevalent in horses, yet it is frequently underdiagnosed due to limited understanding of its clinical presentation and functional consequences, as well as the inherent challenges associated with its clinical assessment and objective measurement. In equines, the relationship between palpation-based MPS indicators, gait asymmetries, and pain-related behaviours during ridden work remains unclear. The primary aim of this study was to evaluate the association between thoracolumbar palpation pain scores and gait asymmetries measured in-hand and dur...
Imaging of the Equine Abdomen Using Point of Care Ultrasound (POCUS)-A Resource for the Equine Practitioner. Wireless ultrasound (US) probes for point of care (POC) evaluation of horses presented for veterinary evaluation of colic have become widely available in recent years. The availability and performance of this technology mean POCUS is readily available to the equine practitioner and the technology is well suited to patient evaluation or serial monitoring in first opinion practice. In human health care and veterinary contexts, it has been suggested that there is a need for practitioners to better appreciate the value of POCUS for assessment of gastrointestinal structure and function. This study ...
Evaluation of systemic inflammatory response syndrome criteria in horses with colic associated with acute gastrointestinal disease. Systemic inflammatory response syndrome (SIRS) is a severe clinical condition commonly observed in horses with acute gastrointestinal disease associated with colic and is linked to increased risk of organ dysfunction and mortality. Early identification of SIRS and reliable prognostic indicators are essential to improve clinical management. This study aimed to assess the occurrence of SIRS in adult horses with colic, evaluate its association with outcome, and investigate the prognostic value of selected clinicopathological variables. Unassigned: A total of 41 adult horses admitted for acute gas...
Biliary Disorders in Horses. This review will mainly focus on the presentation, diagnosis, and treatment of cholangiohepatitis in adult horses. The condition is often accompanied by some degree of intrahepatic and/or extrahepatic biliary obstruction with "sludgy" bile or actual choleliths. In horses, these calculi are typically composed of calcium bilirubinate, rather than cholesterol. There is a propensity for cholangiohepatitis to become a recurrent, chronic condition and patient management should reflect this. Although much rarer, foreign body obstruction, neoplasia and, in some parts of the world, liver flukes can als...
Prognosis of Equine Liver Diseases. Prognostic information in equine liver disease can be gleaned from historical, clinical, clinicopathological, ultrasonographic, and histopathological features. However, given the multiple causes and subtypes of liver disease affecting horses worldwide, prognostic data might not be suitable for universal application across all cases. Most evidence has been established for horses with chronic hepatopathies and extrapolation to acute cases should be avoided. In chronic liver disease the presence and severity of clinical signs and serum markers including total globulins, albumin, and bile acids ar...
Evaluation of doppler indexes of the lateral palmar digital artery in lame sport horses. Although lateral palmar digital artery (LPDA) flow velocity does not differ between forelimbs, horses with lameness typically reduce loading of the affected limb during the weight-bearing phase. This study aimed to assess whether Pulsed-Wave (PW) Doppler indices of the (LPDA) blood flow differ between the two forelimbs in horses with unilateral forelimb lameness, and whether these differences correlate with lameness severity. Twenty-seven lame and 15 healthy horses were enrolled. All Doppler ultrasonographic examinations were performed by a single operator, blinded to both the presence or abse...
The effect of romifidine on endoscopic grading of laryngeal function in horses. To our knowledge, the effect of sedation with romifidine on the grading of laryngeal function in horses has not been studied. Our objective was to examine the effects of romifidine on the grading of laryngeal function and the cross-sectional area of the rima glottis (CSARG). Methods: Ten horses underwent three endoscopic examinations of the larynx: once while unsedated (group R1), once after being sedated with romifidine (0.04 mg/kg intravenously; group R2) and once again, while still sedated, after receiving a repeat dose of romifidine (0.08 mg/kg intravenously, total dose; group R3). The r...
Near-Term Extrauterine Pregnancy Secondary To Uterine Rupture In A Mare. Uterine rupture is an uncommon but life-threatening complication of equine reproduction, typically associated with dystocia, uterine torsion, fetal manipulation, or hydrops. Tears may occur in either the uterine horns or body, although involvement of the ventral uterine body is rare. This case report describes an 11-year-old Arabian mare at 350 days of gestation that developed abdominal pregnancy secondary to uterine torsion and full-thickness ventral uterine rupture, resulting in fetal death and the free presence of the fetus within the peritoneal cavity. Surgical removal of the fetus and pri...
Myofascial trigger points as a primary cause of equine lameness: a biomechanical, neurophysiological, and fascial review. Equine lameness diagnosis is dominated by a joint- and tendon-centric paradigm. The standard diagnostic algorithm relies on gait observation, perineural and intrasynovial anesthesia, and cross-sectional imaging. It is directed almost exclusively at skeletal and articular structures. Myofascial trigger points (MTrPs) are hypersensitive, hyperirritable loci within taut bands of skeletal muscle. They produce local and referred pain on compression or contraction. In horses, MTrPs are a clinically relevant but systematically overlooked source of primary lameness. This review synthesises evidence fr...
Short-Term Daily Oral Administration of Cannabidiol Does Not Impact Rebound Tonometry Intraocular Pressure or Schirmer Tear Test Values in Healthy Adult Horses. To assess the effect of orally administered cannabidiol (CBD) on TonoVet measured intraocular pressure (IOP) and Schirmer tear test I (STT) in horses. Methods: Horse. Methods: This was a masked, randomized, balanced cross-over study of six healthy adult horses. Horses were randomly assigned and received 3 mg/kg CBD in sesame oil or volume matched placebo by mouth once daily for three days. Baseline and daily 4-, 12-, and 24-h post treatment IOPs were measured in triplicate without sedation or eyelid akinesia. Baseline and 24-h post final (day 3) treatment STTs were measured without sedation ...
[Retrospective evaluation of equine blood cultures sampled between 2022 and 2024]. In this study, the results of equine blood cultures sampled during the period from 2022 to 2024 were evaluated. Samples were submitted as routine samples by veterinary practices to a veterinary diagnostic laboratory in Germany. The study focused mainly on the differentiation of the bacterial isolates. In order to place the results in a clinical context, the study was complemented by a questionnaire sent to the practices enquiring for sepsis-associated clinical signs. Unassigned: The study was carried out retrospectively. A total of 199 blood culture samples submitted by practices located in Ge...
Unusual, fatal neck cancer in a foal: immunohistological investigations and differential diagnosis. Neck masses may represent a diagnostic challenge for equine veterinarians, since they may involve different structures with a similar clinical appearance. Whereas neck masses in foals mostly result from non-neoplastic conditions, including various congenital abnormalities, neoplastic cervical masses have been rarely documented. This report describes the unusual case of a rapidly growing neck cancer in a four-month-old colt, resulting in a fatal outcome. Gross and immunohistological findings were most consistent with a poorly differentiated thymic carcinoma with sarcomatoid features and multifo...
Prepubic Tendon Rupture and Uterine Herniation in a Late-Term Kurdish Mare: A Case Report. Prepubic tendon rupture (PPTR) is a rare but life-threatening complication in late-term pregnant mares. It results in abdominal wall failure, ventral oedema and a poor prognosis for both the mare and foetus. A 14-year-old multiparous Kurdish mare at approximately 310 days of gestation presented with acute ventral distension, reluctance to walk and cranial displacement of the udder. Clinical evaluation revealed tachycardia, pallor and Grade 3/4 ventral oedema. Haematology indicated leucocytosis and haemoconcentration. Transabdominal ultrasonography showed a viable foetus and severe thinning of ...
Molecular and serological survey on Theileria equi and Babesia caballi infecting Arabian horses in the northern provinces of Syria. Equine babesiosis is one of the prevalent diseases in horses worldwide, but its presence in Syria generally and in the northern region specifically is not known. In Syria, the civil war has severely disrupted veterinary services, hence disease control measures, creating a fertile ground for the spread of tick-borne diseases. Unassigned: This study aimed to conduct a comprehensive molecular and serological survey of and . in Arabian horses from the northern provinces of Syria, regions heavily impacted by the war. Unassigned: A total of 110 Arabian horses, aged between 2 and 10 years, were inc...
Rostral hard palate swelling (lampas) in horses: true or fiction? This study aimed to determine the occurrence of swellings (lampas) in the rostral portion of the hard palate in young, adult, and elderly horses and to characterize them histologically. One hundred and twenty horses of different ages were evaluated by oral inspection. Horses were classified with lampas when the mucosa of the hard palate extended beyond the occlusal surface of the upper incisors and samples of palatal mucosa were collected. Ten other horses without rostral hard palate alterations, euthanized for unrelated causes, were included as the control group. Histological analysis include...
Assessment of acute and chronic pain in working horses and donkeys in Egypt and the influence of observer training. Pain assessment can support monitoring welfare in working equids. Objective: To assess agreement of structured pain scores before and after training observers and to assess differences in pain scores between working equids with or without acute or chronic pain and to compare them to non-working equids. Methods: In part 1, eleven veterinarians and nine technicians performed pain scores before and after training. Agreement with reference scores was analyzed with Intra Class Correlation (ICC) analysis. In part 2, pain assessments were performed in 96 donkeys (n=40 fit-to-work, n=21 acute pain, n=...
