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Topic:Disease Treatment
Disease treatment in horses encompasses a range of medical interventions and management strategies aimed at addressing various health conditions affecting equine species. These treatments can include pharmacological approaches, such as the administration of antibiotics, anti-inflammatory drugs, and antiparasitic medications, as well as non-pharmacological methods like physical therapy, dietary adjustments, and surgical procedures. The selection of appropriate treatments depends on the specific disease, its severity, and the individual needs of the horse. This topic brings together peer-reviewed research studies and scholarly articles that explore the efficacy, safety, and advancements in therapeutic options for equine diseases, providing insights into best practices and emerging trends in equine veterinary medicine.
Challenges for interpreting results of antimicrobial susceptibility testing for treating infections of foals with Rhodococcus equi. Rhodococcus equi is a facultative intracellular pathogen and a major cause of pneumonia in foals worldwide. The standard treatment for affected foals is a combination of a macrolide with rifampicin. The widespread use of this combination has led to the emergence of multidrug-resistant (MDR) strains of R. equi. Consequently, antimicrobial susceptibility testing is essential for guiding treatment of rhodococcal pneumonia. Unfortunately, clinical breakpoints for macrolides and other antimicrobials against R. equi for foals are lacking, thereby complicating clinical interpretation of in vitro resu...
Alpha-2-Macroglobulin-Enriched Plasma Modulates Inflammatory and Proteolytic Pathways in Experimental Equine Musculoskeletal Models. Joint inflammation and extracellular matrix degradation are major contributors to the development of equine osteoarthritis and reduced athletic performance. Alpha-2-macroglobulin is a naturally occurring broad-spectrum inhibitor of proteases and inflammatory mediators that has emerged as a promising orthobiologic therapy. This study investigated the anti-inflammatory and matrix-protective effects of alpha-2-macroglobulin-enriched plasma in complementary in vitro and ex vivo equine models. Primary equine chondrocytes and synoviocytes isolated from healthy horses were stimulated with interleukin...
Administration of the Postbiotic Substance 412 to Slovak Warm-Blooded Horses: A Pilot Experiment. Antimicrobial proteinaceous postbiotic substances (PS) and/or bacteriocins can beneficially influence animal health, as previously shown with enterocins from non-autochthonous enterococcal strains. Therefore, the effectiveness of PS 412, produced by our beneficial autochthonous strain EF 412, was assessed in horses. In the pilot experiment, PS 412 was administered to 12 horses of various ages and breeds for 21 days via a small feed ball. Sampling was performed on days 0/1, 21, and 42 (after a 3-week cessation of PS 412). The horses served as their own controls. Although the number of horses w...
Wound healing of experimental cutaneous wounds in horses: comparison between a topical formulation containing powdered coconut water and an antimicrobial ointment. Skin wounds in horses often present prolonged healing, stimulating the search for alternative topical therapies. To date, there are no experimental studies in horses evaluating topical formulations containing powdered coconut water. Objective: To compare the early macroscopic and morphometric wound-healing outcomes and the histopathological findings at day 14 in experimental cutaneous wounds in horses treated with a topical formulation containing powdered coconut water versus a reference antimicrobial ointment. Methods: Eight clinically healthy horses received two standardized circular skin wo...
Efficiency of a Combination of Polyethylene Glycol and Psyllium on the Evacuation of Sand Compared to Established Treatment Regimes in Sand Enteropathy of the Horse. The accumulation of sand in the abdomen is a rising risk for colic in horses. Sand mainly accumulates in the ascending colon in the cranioventral abdomen. Evacuation of sand is facilitated by the application of psyllium supported with a laxative via nasogastric intubation. Laxatives currently used are either sodium sulfate/magnesium sulfate or mineral oil. The aim of this study was to compare the efficiency of polyethylene glycol, a laxative already used in human medicine for chronic constipation, with that of the above-described, established therapy options. Therefore, 44 horses diagnosed wit...
Failure of Passive Transfer in neonatal foals – a review. Failure of passive transfer (FPT) is a major contributor to morbidity and mortality in neonatal foals worldwide. Adequate ingestion and intestinal absorption of colostral immunoglobulin G (IgG) during the first hours of life are essential to ensure protection against early-life infections, such as diarrhoea and pneumonia, frequently with fatal outcome. This review summarizes current knowledge on the physiology of passive immunization, risk factors for inadequate IgG absorption, diagnostic methods, therapeutic strategies, and evidence-based preventive measures. Recent research highlights the im...
Risk Factors for Disease in Military Working Equines. Diseases can impact Military Working Equids (MWEs) readiness and limit days in service. The objectives of this study are to categorize diseases in MWEs and evaluate potential risk factors for disease. Methods: Pathology reports from MWEs from 2005 to 2025 were retrieved from the Joint Pathology Center archives. Disease processes with ≥5 cases were evaluated for potential risk factors, including MWE breed, sex, neuter status, geographic location, and age at sampling. Results: Diagnoses included inflammation (n = 30), neoplasia/proliferation (n = 24), within normal limits (n = 12),...
Clinical outcomes of a novel flowable calcium silicate cement in equine endodontic treatment. Orthograde endodontic treatment of equine cheek teeth is performed infrequently with variable success rates of obturation with calcium hydroxide paste (CHP). A novel flowable calcium silicate cement (eCSC) formulated for use as an obturation material in equine teeth has demonstrated acceptable canal filling volumes and evidence of dentinal tubule penetration. However, clinical outcomes of eCSC-obturated equine teeth have not been reported. Objective: To report the clinical outcomes of orthograde endodontic treatment using eCSC. Methods: Retrospective case series. Methods: Horses that underwent...
Cryopreserved umbilical allograft (equicenta® CTM) improves clinical outcomes compared with clinician-selected standard of care in performance horses: a pragmatic prospective controlled trial. This multicenter, prospective, controlled clinical study and client survey evaluated the safety and effectiveness of an equine umbilical tissue suspension (equicenta® CTM; eCTM, 2:1) compared with clinician-selected standard of care (SOC) for treating lame performance horses. Unassigned: This pragmatic, real-world, open-label study enrolled horses diagnosed with appendicular musculoskeletal conditions affecting the joints, tendons, or ligaments under owner consent and an intention-to-treat design with an optional crossover after no improvement at 12 weeks and per-protocol analyses at 26 ...
Intrauterine ozone therapy reduces bacterial load in mares with mixed bacterial endometritis: a longitudinal study. Mixed bacterial endometritis poses a therapeutic challenge in mares due to the coexistence of multiple pathogens with divergent antimicrobial susceptibility profiles. This study evaluated the effects of intrauterine ozone insufflation on uterine bacterial load and endometrial inflammatory response in mares with naturally acquired mixed bacterial endometritis. Fifteen mares with mixed bacterial infection were allocated to two treatment groups: a pathological control group receiving pure medical oxygen insufflation (PC; n = 6) and an ozone-treated group receiving 42 µg/mL ozone for three c...
Favorable survival of horses with guttural pouch mycosis following hospital-based treatment. To report the clinical outcomes and survival time in horses undergoing treatment of guttural pouch mycosis. Unassigned: Client-owned horses with guttural pouch mycosis admitted between 2005 and 2024 for evaluation and treatment were identified by medical record search. Signalment, disease history, and surgical and treatment details were recorded. Owners were contacted for follow-up information. Unassigned: 41 horses with guttural pouch mycosis were identified, of which 28 had epistaxis or a history of epistaxis on presentation. Thirty-five horses underwent surgical treatment, and the procedure...
Penile and preputial pythiosis in Saudi Arabian horses: clinicopathological features and surgical outcomes. Pythiosis, caused by , is a chronic granulomatous disease of horses characterized by invasive, ulcerative, and pyogranulomatous cutaneous lesions. Involvement of the external genitalia is uncommon and remains poorly characterized, particularly regarding environmental exposure and treatment outcomes. This study aimed to describe the epidemiological pattern, clinicopathological features, diagnostic findings, and surgical outcomes of penile and preputial genital pythiosis in a hospital-presented horse cohort. Unassigned: A retrospective study was conducted on 123 horses presented with cutaneous u...
Altered gene expression in the liver and small intestine of horses with equine neuroaxonal dystrophy. Equine neuroaxonal dystrophy/degenerative myeloencephalopathy (eNAD/EDM) is the second most common diagnosis of spinal ataxia in horses in the United States. The disease develops due to a combination of vitamin E deficiency and an unknown genetic risk factor(s), and there currently is no effective treatment. Objective: We performed transcriptomic profiling of the liver and small intestine of horses with and without eNAD/EDM, as both tissues are the main locations for absorption, metabolism, and delivery of vitamin E to the nervous system. Methods: Case-control exploratory study. Methods: Post...
Antibiofilm action of ozonated sunflower oil against bacteria isolated from the uterus of mares susceptible to endometritis. This study aimed to characterize the antibiofilm action of ozone-enriched sunflower oil (O) against pathogens associated with endometritis in mares. Initially, samples from 41 mares with a history of subfertility were stored in BHI broth and 0.9% NaCl solution. The samples underwent microbial culture, identification, and sensitivity testing at LABRAPE-UFRPE, Brazil. Biofilm production was evaluated by the crystal violet method. Subsequently, biofilm-forming bacteria were subjected to the action of different concentrations of ozonated sunflower oil. Of the 21 isolates tested for biofilm produc...
Vietnam’s Horse Sector: A Comprehensive Review of History, Production Systems, Health Challenges, and Research Priorities. Horses in Vietnam have a long historical presence and continue to hold economic, socio-cultural, and medicinal importance across diverse regions. Despite these roles, comprehensive scientific information on equine development, including health and disease patterns, reproductive performance, genetic resources, and biomedical applications, remains limited and fragmented. In this review, we summarize existing knowledge on equine populations, production systems, and their development in Vietnam, as well as their roles in cultural practices, livelihoods, and traditional medicine. We then identify m...
[New drugs for horses and production animals in 2025]. In 2025, no novel pharmaceutical agents for horses and farm animals were introduced to the German veterinary drug market; however, the use of 2 existing active ingredients was expanded to include additional animal species. A dexamethasone preparation is now approved for use in goats, and a new product containing sodium salicylate for chickens was introduced. Oxalic acid dihydrate is now available as an impregnated strip for contact treatment. In the field of immunological veterinary medicines, a vaccine against epizootic hemorrhagic disease virus in cattle was approved for the first time. In a...
Efficacy and safety of canagliflozin in insulin dysregulated horses: a 4-week multi-arm, double-blind, randomized, clinical trial. Sodium-glucose cotransporter-2 (SGLT2) inhibitors are promising drugs for treatment of hyperinsulinemia in insulin-dysregulated (ID) horses. Objective: Compare short-term effects of the SGLT2 inhibitor canagliflozin versus placebo on glucose and insulin responses during an oral sugar test (OST) and a forage-based feed challenge test (FCT), and to assess adverse effects. Methods: Forty-two privately owned severely ID horses. Methods: Multi-center, randomized, double-blind, placebo-controlled, parallel-group study. Horses were allocated (1:1:1) to receive canagliflozin (0.6 or 1.2 mg/kg PO q24h...
Jejunocecostomy in horses-a review of its unique complexities. Jejunocecostomy (JC), or jejunocecal anastomosis, is arguably the most controversial surgical procedure in equine small intestinal surgery. It is also the only option for resection and anastomosis for a third of small intestinal strangulating lesions in horses. Critics of the procedure identify its low survival and high complication rates as reasons to avoid its use. This review is intended to highlight findings of recent research and clinical studies that validate use of the JC, and to provide some insights into technical aspects of the procedure that might improve its survival rates. Jejunoc...
Phage Therapy for a Refractory and Multidrug-resistant Equine Surgical Site Infection. A 14-year-old American Quarter Horse mare developed a refractory deep surgical site infection following emergency celiotomy for acute right dorsal large colon displacement with 180° volvulus. Initial cultures revealed a high-burden polymicrobial infection with and , associated with delayed healing, and later followed by multidrug-resistant , further limiting therapeutic options. Phage therapy was initiated using a customized lytic phage cocktail administered topically on a daily basis over a 35-day period, with cocktail composition guided by daily wound culture results. Phage therapy markedl...
Transfer of passive immunity in foals: Can the plasma transfusion efficacy be predicted? The treatment for failure of transfer of passive immunity (FTPI) in foals with hyperimmune plasma has substantial variability of efficacy. Objective: The aims of the study were to assess the safety and efficacy of plasma transfusion and to investigate factors that may predict transfusion results, thereby allowing estimation of plasma volume requirements prior to transfusion. Methods: A retrospective review was conducted of foals admitted to an equine hospital that received a plasma transfusion for FTPI. Results: The study included 110 foals and 150 hyperimmune plasma transfusions. The median i...
Clinical Signs of Liver Disease in Horses. Clinical signs associated with liver disease in horses are often a reflection of underlying hepatic dysfunction but typically vague rather than pathognomonic. Many observed clinical signs are subtle or not recognizable in the early stages of liver disease and thus may appear acute in onset despite an underlying chronic condition. Clinical signs reported in horses with liver disease include hyporexia or anorexia, weight loss, changes in demeanor, hepatic encephalopathy, colic signs, icterus, photosensitization, diarrhea, clinical coagulopathies, ascites, peripheral edema, steatorrhea, pruritus,...
Pharmaceutical and Nutraceutical Therapies for Liver Disease. Liver dysfunction may reduce the metabolism of drugs that undergo extensive hepatic processing. This will lead to reduced clearance and elimination, and can cause accumulation of the drug, increasing the risk of toxicity. Pentoxifylline and ursodeoxycholic acid are 2 pharmaceuticals that can provide benefits for a variety of equine hepatic diseases. Nutraceuticals are frequently used in horses with hepatopathy, targeting oxidative stress, inflammation, and hepatocellular injury. Neutraceuticals such as S-adenosylmethionine, silymarin and vitamin E are most commonly used although extensive rese...
Novel technique for correcting urovagina via urethral transposition in the horse. Vesicovaginal reflux is a common cause of infertility in mares. Surgical correction is commonly recommended and involves caudal relocation of the urethral orifice which forces the urine to be expelled caudally. There have been several previously described techniques. Complications associated with caudal urethral extension occur in 11-33.3% of cases. Objective: To identify a novel technique for performing caudal urethral translocation that effectively corrects vesicovaginal reflux with minimal associated complications. Methods: In vivo experiment and clinical case series. Methods: The experimen...
Evaluation of autologous fecal microbiota transplantation for restoring equine gut microbiota after antibiotic-induced dysbiosis. Microbial resilience is important to maintain a healthy gut environment in horses, especially after antibiotic administration, but the efficacies of post-antibiotic recovery strategies remain poorly characterized. We used microbial amplicon sequencing to compare spontaneous recovery, autologous fecal microbiota transplantation (FMT), and probiotic administration in 18 horses following antibiotic-induced dysbiosis. Clinically healthy horses received a combination of cephalothin and minocycline for 5 consecutive days before intervention. Fecal microbial recovery was longitudinally evaluated by u...
Genomic diversity of multidrug-resistant Rhodococcus equi: novel sequence types, pangenome architecture, and phylogenomic evolution. Rhodococcus equi is a major cause of life-threatening pneumonia in foals under 6 months of age and an opportunistic pathogen in immunocompromised humans. Although common in soil and equine farm environments, its evolutionary dynamics, virulence architecture, and pathways of antimicrobial resistance (AMR) emergence remain poorly understood. This study integrated phenotypic characterization and whole-genome sequencing of 46 R. equi isolates from horses submitted for necropsy (n = 45) and equine fecal samples (n = 1) in Kentucky between January 2022 and December 2023 to define their resistance la...
A non-trauma-focused equine-assisted intervention was associated with reductions in all four PTSD symptom clusters in treatment-resistant military veterans. Veterans are at greater risk of developing post-traumatic stress disorder (PTSD) and show a poorer response to first-line treatments than civilians. Although equine-assisted interventions (EAIs) represent a promising alternative for military veterans,the underlying mechanisms remain uncertain, and their effectiveness across different PTSD symptom clusters has yet to be established. This study examined the effects of a non-trauma-focused EAI on specific PTSD symptoms in treatment-resistant military veterans. Unassigned: Participants in the intervention were military veterans diagnosed with PTSD...
Prevalence, risk factors, and antimicrobial resistance of Staphylococcus aureus in equines in Egypt. Staphylococcus aureus is a common commensal organism in both humans and animals, frequently colonizing the skin and nasal cavities of healthy individuals, although it can also cause a wide range of severe infections. The present study investigated the prevalence and risk factors of S. aureus in equines, along with antimicrobial resistance patterns of methicillin-resistant S. aureus (MRSA) isolates. The results revealed a prevalence of 38.6% in nasal samples collected from equines, highlighting the organism's significant presence and potential to cause infections in these animals. A genotypic p...
Roux-en-Y gastrojejunostomy and jejunojejunostomy for pyloric obstruction bypass in a horse and a foal. Gastric outflow obstruction in horses is a rare but challenging condition, often resulting from either congenital anomalies or acquired lesions such as chronic ulceration or pyloric polyps. Conventional surgical bypass procedures, including gastrojejunostomy (GJ) or gastroduodenostomy and less commonly duodenojejunostomy, can restore patency but may lead to postoperative complications. Objective: To describe the presentation, surgical management, and postoperative outcome of two horses-an adult and a foal treated with Roux-en-Y gastrojejunostomy combined with a side-to-side jejunojejunostomy (...
Laser neoureterocystostomy to treat ectopic ureters. Ureteral ectopia is an uncommon but clinically important congenital abnormality in horses. If left untreated, it can lead to persistent dermatitis, urinary tract infections, and failure to thrive. Surgical correction is necessary, but traditional approaches have produced mixed results with high morbidity. Identification of a minimally invasive, effective technique would significantly improve prognosis. Objective: To describe the procedure and outcomes of cystoscopic guided laser neoureterocystostomy in three fillies. Methods: Case series. Methods: Retrospective review of three cases treated wi...
Recent Advances in Natural Products for Colitis: Mechanisms and Translational Perspectives. Colitis is a chronic relapsing inflammatory disorder characterized by persistent mucosal inflammation, epithelial barrier disruption, oxidative stress, immune dysregulation, and gut microbiota imbalance. Although current therapies have improved disease management, their long-term use is still limited by incomplete response, relapse, adverse effects, and high cost. Natural products have attracted increasing attention as promising candidates for colitis intervention because of their structural diversity, broad bioactivity, and multitarget regulatory potential. In veterinary medicine, colitis and...
