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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.
Update on treatments for endotoxemia. Endotoxemia is a major cause of morbidity and mortality in horses affected by colic. This article briefly reviews the pathogenesis of endotoxemia in horses with colic, reviews current established treatments, and describes new advances in the treatment of endotoxemia.
Parasitism and colic. Equids are hosts to dozens of species of internal parasites that infect no other domestic animals. Virtually all horses, especially those exposed to pasture, experience some level of parasitism continuously. Despite pathologic evidence of parasitic damage in various organs and tissues, few parasitisms are manifested systemically in well-managed horses. Contrary to conventional wisdom, only three common parasitisms of horses are likely to be manifested as colic: Strongylus vulgaris, Parascaris equorum, and Anoplocephala perfoliata. This article discusses the life cycles, pathophysiology, manife...
Prognosticating equine colic. Prognosticating survival in horses with colic is challenging because of the number of diseases and pathophysiologic processes that can cause the behavior. Although the treatment of horses with colic has improved dramatically over the years, case fatality can still be high because of the delay in recognizing the problem, the time delay inherent in receiving veterinary care, and the lack of effective treatment for the more severe diseases. Intensive case management and surgery for these horses may be expensive and emotionally draining for owners; therefore, providing an accurate prognosis is key...
New perspectives in equine gastric ulcer syndrome. Equine gastric ulcer syndrome (EGUS) is common in horses. A history of mild intermitted recurrent colic signs after eating is noted in many horses. Management of horses with abdominal pain caused by gastric ulcers is especially difficult, because non-steroidal anti-inflammatory agents, typically used to control abdominal pain, may exacerbate this condition. Effective pharmacologic agents are available to treat EGUS and eliminate abdominal pain, but more comprehensive measures of environmental and dietary management are needed to manage horses with EGUS and prevent recurrence. This article focu...
Coagulopathies in horses with colic. The most common coagulopathy in horses with colic is a hypercoagulable state associated with disseminated intravascular coagulation. The intensity of this coagulopathy depends on the severity and duration of the gastrointestinal lesion, with the ischemic and inflammatory problems and peritonitis being the most frequently affected by coagulopathies. Early initiation of prophylactic therapy significantly reduces the severe hypercoagulable state in horses with intestinal conditions which are recognized to be at high risk for disseminated intravascular coagulation. In addition to the systemic coag...
Impactions of the small and large intestines. Impactions of the small and large intestines are frequently diagnosed as the cause of colic in horses. An impaction is an accumulation of dehydrated ingesta in a portion of the digestive tract, typically at sites where the intestinal diameter decreases. The specific pathogenesis for impactions is not fully understood, although risk factors have been identified for several types of impactions. Treatment for impactions includes withholding feed until the impaction passes, rehydrating the ingesta, and, if necessary, administering analgesic agents. In severe cases, surgery may be necessary to reli...
Inflammatory bowel disease in horses. This article discusses types of inflammatory bowel disease in horses, including pathologic findings and proposed causes. The diagnosis of inflammatory bowel disease is presented in detail, including minimum database, rectal palpation, abdominal ultrasound, abdominocentesis, biopsy procedures, and absorption tests. Treatment recommendations and prognosis are also discussed.
Postoperative ileus: pathogenesis and treatment. Surgical manipulation of the intestines activates intestinal macrophages that release cytokines and nitric oxide, which results in inhibition of intestinal motility. Subsequent infiltration of circulating leukocytes into the intestinal wall contributes to cytokine and nitric oxide release and exacerbates ileus. Other factors contributing to ileus are endotoxemia; edema of the intestine wall subsequent to excessive fluid therapy; hypocalcemia; and long abdominal incisions. Because treatment of ileus with prokinetic drugs has not proven to be very effective, efforts should be directed at reducin...
Changes in dynamic trunk/head stability and functional reach after hippotherapy. To determine if hippotherapy (therapy using a horse) improves head/trunk stability and upper extremity (UE) reaching/targeting in children with spastic diplegia cerebral palsy (SDCP). Methods: Pre-postoperative follow-up with a 12-week intervention and 12-week washout period after intervention. Methods: A human performance laboratory with 6 camera video motion capture systems for testing. Methods: Eleven children (age 5-13y, average 8y) with SDCP, 8 children (age 5-13y, average 8y) without disabilities. Methods: Hippotherapy intervention performed at 3 therapeutic horseback riding centers. Met...
Treatment of a periarticular tibial fracture in a foal with a hybrid external fixator. To report repair of a right proximal tibial Salter-Harris type II fracture in a foal with a hybrid external fixator (HEF). Methods: Case report. Methods: A 5-month-old male foal. Methods: After open surgical reduction, an HEF built with wires, 2 half-rings, 3 half-threaded connecting rods, and Schanz pins was used to stabilize the fracture. Results: Immediately after surgery, the foal had relatively good weight bearing. The HEF was removed at 60 days after radiographic confirmation of healing. Conclusions: HEF can be used to stabilize a proximal tibial Salter-Harris type II fracture in a 5-mon...
Surgical treatment of gastric outflow obstruction in 40 foals. To report short- and long-term survival and factors affecting outcome of foals after surgical correction of gastric outflow obstruction. Methods: Case series. Methods: Foals (n=40) aged 5-180 days. Methods: Clinical signs, laboratory data, diagnostic imaging, surgical findings, surgical procedures, medical treatment, and necropsy findings were retrieved from medical records. Outcome was obtained by reviewing performance, sales, and produce records or by telephone conversations with the owners. Results: Gastric outflow obstruction was treated by gastroduodenostomy or by gastrojejunostomy with o...
Comparison of the diagnostic value of ultrasonography and standing radiography for pelvic-femoral disorders in horses. To assess agreement between ultrasonography (transcutaneous and transrectal) and standing radiography in horses with fractures in the pelvic region and disorders of the coxofemoral joint. Methods: Case series. Methods: Warmblood horses (n=23) and 2 ponies. Methods: Medical records (1999-2008) of equids with pelvic or coxofemoral disorders that had pelvic radiography and ultrasonography were retrieved and results of both techniques compared. Results: Radiography and ultrasonography each identified equal numbers of fractures of the tuber coxa (n=4), ilial shaft (2), ischium (3), femoral neck (2)...
Prevalence of and risk factors for postoperative ileus after small intestinal surgery in two hundred and thirty-three horses. To determine the incidence of postoperative ileus (POI) in a population of horses after small intestinal surgery and the effect of multiple variables on development of POI. Methods: Case series. Methods: Horses (n=233) aged > or =1 year that had exploratory celiotomy for small intestinal disease that recovered from surgery from 1995 to 2005. Methods: Sixty-eight variables were collected from medical records (1995-2005) for each horse. POI was defined as nasogastric reflux volume >20 L over 24 hours or >8 L at any single time after surgery. Results: Twenty-seven percent (64/233) of hor...
Comparison of sinoscopic techniques for examining the rostral maxillary and ventral conchal sinuses of horses. To develop a reliable technique for sinoscopic examination of the ventral conchal (VCS) and rostral maxillary sinuses (RMS) of horses Methods: Descriptive study Methods: Cadaveric equine heads (n=40) Methods: The VCS and RMS were examined endoscopically using: (1) rostral trephination of the RMS (rostral RMS approach); (2) caudal trephination of the RMS (caudal RMS approach); (3) conchofrontal sinus (CFS) trephination followed by RMS trephination at a site identified by endoscopic transillumination of the maxillary bone at the most rostral aspect of the caudal maxillary sinus (CMS) (light-indi...
Arthroscopic removal of metallic foreign body from the talocrural joint using a magnetic retriever in a horse. To report use of a magnetic retriever for arthroscopic removal of a metallic foreign body from the equine talocrural joint. Methods: Clinical report. Methods: A 2-year-old Warmblood stallion. Methods: A metallic foreign body was removed from a talocrural joint using a 10-mm magnetic retriever under arthroscopic guidance. Preoperative radiographs were used to locate the intra-articular position of the foreign body. Results: Six months after surgery, the horse was no longer lame. Conclusions: A magnetic retriever can be used for arthroscopic removal of metallic foreign bodies from the equine tal...
Efficacy of furosemide for prevention of exercise-induced pulmonary hemorrhage in Thoroughbred racehorses. To evaluate the efficacy of furosemide for prevention of exercise-induced pulmonary hemorrhage (EIPH) in Thoroughbred racehorses under typical racing conditions. Methods: Randomized, placebo-controlled, blinded, crossover field trial. Methods: 167 Thoroughbred racehorses. Methods: Horses were allocated to race fields of 9 to 16 horses each and raced twice, 1 week apart, with each of the 2 races consisting of the same race field and distance. Each horse received furosemide (500 mg, IV) before one race and a placebo (saline solution) before the other, with the order of treatments randomly determ...
Comparison of ultrasonography versus radiography for the diagnosis of dorsal fragmentation of the metacarpophalangeal or metatarsophalangeal joint in horses. To compare clinical usefulness of ultrasonography versus radiography for detection of fragmentation of the dorsal aspect of the metacarpophalangeal (MCP) and metatarsophalangeal (MTP) joints in horses. Methods: Cross-sectional study. Methods: 36 horses with fragmentation of the MCP (n = 19) and MTP (29) joints. Methods: In all joints, radiography (4 standard projections) and ultrasonography were performed prior to arthroscopic examination and fragment removal. Number and location of fragments identified radiographically and ultrasonographically were compared with arthroscopic findings. Results...
Evaluation of pain and inflammation associated with hot iron branding and microchip transponder injection in horses. To compare effects of hot iron branding and microchip transponder injection regarding aversive behavioral reactions indicative of pain and inflammation in horses. Methods: 7 adult horses. Methods: In a randomized controlled clinical crossover study, behavioral reactions to hot iron branding and microchip transponder injection were scored by 4 observers. Local and systemic inflammation including allodynia were assessed and compared by use of physiologic and biochemical responses obtained repeatedly for the 168-hour study period. Serum cortisol concentration was measured repeatedly throughout th...
Retrospective multicentre study of methicillin-resistant Staphylococcus aureus infections in 115 horses. Methicillin-resistant Staphylococcus aureus (MRSA) is an emerging veterinary and zoonotic pathogen, associated with increasing reports of disease in horses. Objective: To provide an overview of the characteristics of clinical MRSA infections in horses. Methods: A retrospective case study was performed on 115 horses admitted to 6 participating veterinary teaching hospitals in Canada and the United States between 2000 and 2006, and diagnosed with clinical MRSA infection. Descriptive statistics, univariate and multivariable analyses for community- (CA) vs. hospital-associated (HA) MRSA infections...
Effect of magnitude and direction of force on laryngeal abduction: implications for the nerve-muscle pedicle graft technique. The nerve-muscle pedicle graft technique is a treatment for recurrent laryngeal neuropathy (RLN), but the optimal placement of the pedicles within the cricoarytenoideus dorsalis (CAD) muscle is unknown. Objective: The magnitude and direction of force placed on the muscular process of the left arytenoid cartilage affects the magnitude of laryngeal abduction. Methods: Five larynges were harvested from cadavers. Using increments of 0.98 N, a dead-weight force generator applied a force of 0-14.7 N for 1 min each to the left muscular process at 0, 10, 20, 30, 40, 50, 60 and 70 degrees angles. The r...
The effect of focused extracorporeal shock wave therapy on collagen matrix and gene expression in normal tendons and ligaments. Extracorporeal shock wave therapy (ESWT) is frequently used in equine practice, but little is known about its biological action. Objective: To study the effects of ESWT on matrix structure and gene expression levels in normal, physiologically loaded tendinous structures in ponies. Methods: Six Shetland ponies, free of lameness and with ultrasonographically normal flexor and extensor tendons and suspensory ligaments (SL), were used. ESWT was applied at the origin of the suspensory ligament and the mid-metacarpal region of the superficial digital flexor tendon (SDFT) 6 weeks prior to sample taki...
Clinical dental examinations of 357 donkeys in the UK. Part 2: epidemiological studies on the potential relationships between different dental disorders, and between dental disease and systemic disorders. Dental disease has been shown to be a risk factor for weight loss and colic in horses. No extensive clinical studies in donkeys have investigated the potential relationship between different dental disorders, or between dental disease and systemic disorders. Objective: To determine possible associations between dental disease and body condition score, weight loss, the need for supplemental feeding and prevalence of colic in donkeys of all ages, and to gain a better understanding of the pathogenesis of dental disease by the determination of associations between different dental disorders. Metho...
