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Topic:Veterinary Care
Veterinary care in horses encompasses the medical and preventive measures taken to maintain and improve the health and well-being of equine patients. It includes a wide range of practices such as routine health examinations, vaccinations, dental care, parasite control, and management of injuries and diseases. Veterinary care also involves diagnostic procedures, surgical interventions, and therapeutic treatments tailored to the specific needs of horses. This page gathers peer-reviewed research studies and scholarly articles that explore various aspects of equine veterinary care, including advancements in diagnostic techniques, treatment protocols, and health management strategies to support the well-being and performance of horses.
Post-mortem findings of gastric ulcers in Swedish horses up to one year of age: a retrospective study 1924-1996. Necropsy records from 702 horses, less than one year old, that were subjected to necropsy between 1924 and 1996 were used to estimate the prevalence of gastric ulceration in younger horses and to evaluate some potential risk factors that may contribute to the development of gastric ulceration. Information concerning breed, gender, age, season of death, clinical signs of colic, medical treatment, parasitism and documentation of diseases in different organs were recorded, as well as size, number and anatomical distribution of ulcers. Gastric ulcers were found in 96 of 702 young horses (14%) and ...
Equine dental disease part 2: a long-term study of 400 cases: disorders of development and eruption and variations in position of the cheek teeth. Of 400 referred horses with dental disorders, 349 cases suffered from primary disorders of their cheek teeth, ninety of these from disorders of development or eruption, or displacements. These included 20 cases with rostral maxillary and caudal mandibular cheek teeth overgrowths, 16 with diastemata, 15 with grossly enlarged mandibular 'eruption cysts', 4 with grossly enlarged maxillary cheek teeth 'eruption cysts', 10 cases with supernumerary cheek teeth and 23 cases with displaced cheek teeth. These displacements were believed to be developmental in 16 cases and acquired in the remaining 7 ca...
A serological and clinical follow-up in horses with confirmed equine granulocytic ehrlichiosis. For diagnosis of equine granulocytic ehrlichiosis (EGE) serological testing of antibodies to Ehrlichia equi is frequently used. An elevated antibody level is often misinterpreted as confirmative of active infection and results in treatment with antibiotics. If only seropositivity is considered as the diagnostic criterium, many horses showing convalescence titres will be treated. This study was undertaken to obtain information about the kinetics of antibodies during the course of infection and, for this purpose, 45 horses with clinical signs of EGE and confirmed ehrlichiaemia were monitored ser...
[Evaluation of intravenous immunotherapy with purified F(ab’)2 fragments (Viperfav)]. To assess early clinical and biological prognosis factors in viper envenomings, and assess efficacy of Viperfav immunotherapy. Viperfav contains purified F(ab')2 fragments of equine antibodies. Methods: A retrospective case review study of viper envenomings collected by two poison centers in France, treated or not treated by Viperfav, was conducted. Two hundred seven cases of viper bites including 119 moderate or severe envenomings (Grade II and III, recorded in adults and children and collected from 1992 to 1997 were included. Before treatment, clinical gradation and early biological severity...
Transabdominal ultrasonographic determination of fetal gender in the horse during mid-gestation. Gender determination of the equine fetus using transabdominal ultrasonography was studied in 20 mares. One group of 10 research mares was scanned repeatedly every 2 weeks from 100 days gestation to parturition, while the second group of 10 client mares was subjected to echography once during mid-gestation. In males, the penis and/or prepuce was observed on 71 occasions from 102 days to 258 days gestation. On cross-sectional views, the male external genitalia had a round shape with parallel linear echogenic foci up to approximately 140 days gestation and then appeared triangular. Fetal testes w...
Measurements of reproductive function in stallions treated with trimethoprim-sulfamethoxazole and pyrimethamine. To evaluate the effects of trimethoprim-sulfamethoxazole and pyrimethamine treatment on various measures of reproductive function in healthy pony stallions. Methods: Randomized complete block study. Methods: 12 healthy, mature pony stallions. Methods: Stallions were assigned to treatment and control groups balanced for age and various characteristics of reproductive function. The treated group received trimethoprim-sulfamethoxazole and pyrimethamine for 90 days during summer and fall; the control group was not treated. Semen characteristics, sexual behavior, testicular volume, and sperm produc...
Quantitative real-time PCR for equine cytokine mRNA in nondecalcified bone tissue embedded in methyl methacrylate. Specific amplification and quantitation of nucleic acid sequences by the polymerase chain reaction (PCR) has been extensively used for the detection of viral infection and gene expression. Although successful amplification of DNA and RNA sequences extracted from paraffin embedded tissue have been described, there are presently no reports available regarding RNA analysis from bone and calcified tissues embedded in hydrophobic acrylic resin. Here we describe a general method for quantitation of specific mRNA sequences extracted from undecalcified bone sections, fixed in paraformaldehyde, and emb...
Monensin poisoning in Brazilian horses. Three outbreaks of monensin poisoning caused 12 deaths in 16 horses. The illnesses were associated with the ingestion of the same batch of a commercial ration labeled for feeder calves which contained 180 +/- 20 ppm sodium monensin. The morbidity rate was 100% and lethality was 60%, 75%, and 100%. Clinical signs were tachycardia and cardiac arrythmia, groaning, incoordination, sudoresis, recumbency, and paddling movements with the limbs before death. Two horses had dark discolored urine (myoglobinuria). Serum levels of creatine phosphokinase activity were increased. Main necropsy findings were...
Injection site eosinophilic granulomas and collagenolysis in 3 horses. Three horses were presented with a history of having developed raised cutaneous nodules, within 24-48 hours, in areas of previous injections using standard silicone-coated hypodermic needles. Skin biopsies were taken from a selected cutaneous nodule from all horses for histopathologic evaluation. Histologically, the nodules were consistent with a diagnosis of equine eosinophilic granuloma. A hypersensitivity reaction to the silicone, or another component of the coating formulation, was hypothesized to be responsible for these lesions. Two horses were experimentally injected using both coated a...
Pharmacologic considerations in the treatment of neonatal septicemia and its complications. This article focuses on the pharmacologic properties of drugs commonly used in the treatment of neonatal septicemia and its complications. Rational therapy demands an awareness of not only the pharmacology of individual drugs but also the interactions and anticipated fate of such drugs in the rapidly changing physiologic environment of the neonate. Further research in the area of equine neonatal pharmacology should greatly assist our understanding of the impact of the disease state on the unique physiology of the newborn and should allow us to better predict the ultimate fate of drugs commonly...
Equine reproductive pharmacology. This article reviews therapies and strategies commonly used to treat diseases of the mare's genital tract and modulate the reproductive cycle of the mare. Many reproductive treatments are based on historical use and empirical evidence rather than well controlled clinical studies. This article attempts to present practical information in a summary form while highlighting the need for continued research documenting the efficacy and safety of reproductive therapies.
Treatment and control of gastrointestinal parasites. Routine anthelmintic treatments are one of the most important components of an equine wellness program used by horse owners and veterinarians today. Thirteen different compounds are available in the United States in the treatment of gastrointestinal parasites, most of which are available over the counter. As a result, there is a decreased reliance on the veterinarian to perform routine tube dewormings. Therefore, the future of the veterinarian's role in the management of gastrointestinal parasites is likely to be in the consultation and design of parasite control programs. With this in mind, t...
Formulary of common equine drugs. This article presents in easily accessible form a collection of drug names and dose rates for the drugs recommended or referred to by the authors of the individual articles in this issue. Although the formulary provides recommendations for drug use, the reader is cautioned that the responsibility for the choice of agent, formulation, dose, and dose interval lies with the clinician. The author also addresses regulations that govern the use of drugs in competition horses.
Equine respiratory pharmacology. Differentiation of diseases of the equine respiratory tract is based on history, clinical signs, auscultation, endoscopy, imaging, and sampling of airway exudate. Upper respiratory therapies include surgical correction of airway obstructions; flushing of localized abscesses (strangles), guttural pouch disease, or sinusitis; and oral or parenteral antibiotic and anti-inflammatory therapy if deemed necessary. Pneumonia usually is treated with antimicrobials, anti-inflammatories, and bronchodilators. Pleural drainage is indicated if significant pleural effusion is present. The most commonly used ...
Equine cardiac disease. Clinical pharmacology and therapeutics. Cardiac disease is often life-threatening and challenging to treat. Prolonged therapy is indicated in many cases, which can lead to problems with treatment costs, owner compliance, and potential drug toxicity. Many therapies are empirical or based on data from other species because of a lack of well-designed prospective clinical trials in horses. This article reviews the clinical pharmacology and therapeutics of heart failure, cardiac arrhythmias, myocardial disease, endocarditis, and pericardial disease.
Epizootic lymphangitis in horses: a review of the literature. Epizootic lymphangitis is a relatively common infectious disease of horses and other liquids in certain parts of the world. The infection rate varies according to the geographic area and the age of the animal. The disease is most commonly characterised by a cord-like appearance of the subcutaneous lymphatic and cutaneous pyogranulomas, the discharge from which contains spherical or pear-shaped bodies of the causal agent, Histoplasma farciminosum. Diagnosis can be made by the demonstration of typical organisms in stained smears, culture and tissue sections. Serological tests and a skin hypersen...
Therapeutics of musculoskeletal disease in the horse. Therapeutic medications play a crucial role in the successful therapy of many musculoskeletal diseases that occur in horses. For example, appropriate antibiotic therapy is extremely important in the treatment of diseases caused by infections with microorganisms such as botulism, tetanus, osteomyelitis, and muscle abscesses. In addition, numerous prescription medications and nutritional supplements are available for the treatment of osteoarthritis in horses. Many of these agents currently on the market fall into a new class of drugs called SADMO agents. Unfortunately, the efficacy and mechanism...
Analgesia. Critical to reducing patient morbidity as well as heightened ethical awareness, alleviation of pain in animals has become integral to medical case management and surgical procedures. Pharmacotherapy is directed at peripheral nociceptors, primary and secondary spinal neurons, and pain-processing areas in the CNS. Accordingly, three primary pharmacologic strategies have evolved: drugs that bind to and activate opioid receptors, drugs that bind to and activate alpha 2 receptors, and drugs that reduce de novo prostaglandin synthesis. In horses, the two predominant types of pain encountered are mus...
Renal pharmacology. Pharmacologic treatment of diseases of the urinary tract of horses is limited to administration of antibiotics for treatment of urinary tract infections (UTIs), administration of drugs that alter urine pH, administration of drugs that alter bladder smooth muscle function or urethral sphincter tone, and treatment of acute renal failure. The indications, mechanisms of action, pharmacokinetic characteristics, and adverse effects of these agents in each of these groups are discussed in this article. The use of the agents is discussed within the context of the pathophysiology of the disease being t...
Modes of local drug delivery to the musculoskeletal system. A number of methods for the local delivery of drugs to musculoskeletal tissues in the horse are now available. Further research is required to document the disposition of drugs delivered by such methods and to correlate this information with efficacy. Perhaps the greatest potential area for the methods discussed is the treatment of synovial and bone infections. To be able to provide high and sustained therapeutic concentrations of antimicrobials to the site of infection should increase the chances of success in such cases. These methods of drug delivery need to be used in conjunction with othe...
Equine infectious keratitis. Corneal ulcers are one of the most common ocular disease presentations in the horse. With the use of correct diagnostic techniques and selection of an appropriate treatment regimen, most cases result in a satisfactory outcome. The eye does not respond well to inflammation, and in complicated ulcers, this should be managed aggressively using systemic NSAIDs with a high priority assigned to removing the infectious agent. Care needs to be taken to avoid topical or systemic corticosteroid use for the treatment of equine ocular disease, however, unless the clinician is completely sure that the corn...
