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Topic:Morbidity
Morbidity in horses refers to the incidence and prevalence of diseases and health conditions affecting the equine population. It encompasses a wide range of disorders, including infectious diseases, metabolic syndromes, musculoskeletal injuries, and respiratory issues. Understanding morbidity in horses involves evaluating factors such as age, breed, environment, and management practices that can influence the occurrence and progression of these conditions. Morbidity data are essential for assessing health trends, guiding preventive measures, and improving therapeutic strategies in equine medicine. This page compiles peer-reviewed research studies and scholarly articles that explore the patterns, causes, and implications of morbidity in horses, contributing to a comprehensive understanding of equine health challenges.
Neurosurgical management of head injuries incurred during sports: a single centre experience. Accidents during sporting activities are a common cause of head injury, particularly in children and young adults. Whilst most sporting head injuries are minor, there remains a proportion which is associated with high morbidity and mortality. The epidemiology of sports associated head injuries is variable based on geographical region so the aim of this study was to review the management and outcomes of sporting head injuries managed by a single neurosurgical unit in the South of England. A retrospective review of the Trauma Audit and Research Network database was conducted for all patients ad...
Paranasal sinus cysts in the horse: Complications related to their presence and surgical treatment in 37 cases. Paranasal sinus cysts (PSC) are a common cause of equine secondary sinusitis. The outcome and associated complications have not been frequently reported. Objective: To review the associated clinical signs, associated morbidities and outcomes of horses treated for PSC. Methods: Retrospective multicentre case series. Methods: Retrospective analysis of case records and telephone follow up survey. Results: Subjects were 37 horses 1-24 years old that were presented with nasal discharge (n = 31), facial swelling (n = 25) and epiphora (n = 19). Radiography and computed tomography allowed identificati...
Helmet under-utilization by children during equestrian events is associated with increased traumatic brain injury. Awareness of equestrian related injury remains limited. Studies evaluating children after equestrian injury report under-utilization of safety equipment and rates of operative intervention as high as 33%. Methods: We hypothesized that helmets are underutilized during equestrian activity and lack of use is associated with increased traumatic brain injury. We queried the trauma database of a level one pediatric trauma center for all cases of equestrian and rodeo related injury from 2005 to 2015. Analysis was conducted using SAS 9.4. Results: Of 312 children identified, 142 were assessed for use ...
Paediatric horse-related trauma. This retrospective cohort study reported on the epidemiology of horse-related injuries for patients presenting to the only tertiary paediatric trauma hospital in Queensland. The secondary outcome was to examine the use of helmets and adult supervision. Traumatic brain injury (TBI) was examined in relation to helmet use. Morbidity and mortality were also recorded. Methods: Included were all patients presenting with any horse-related trauma to the Royal Children's Hospital in Brisbane from January 2008 to August 2014. Data were retrospectively collected on patient demographics, hospital length o...
Review of hypoxaemia in anaesthetized horses: predisposing factors, consequences and management. To discuss how hypoxaemia might be harmful and why horses are particularly predisposed to developing it, to review the strategies that are used to manage hypoxaemia in anaesthetized horses, and to describe how successful these strategies are and the adverse effects associated with them. Methods: Google Scholar and PubMed, using the search terms horse, pony, exercise, anaesthesia, hypoxaemia, oxygen, mortality, morbidity and ventilation perfusion mismatch. Conclusions: Although there is no evidence that hypoxaemia is associated with increased morbidity and mortality in anaesthetized horses, mos...
Prevalence, survival analysis and multimorbidity of chronic diseases in the general veterinarian-attended horse population of the UK. The average age of the global human population is increasing, leading to increased interest in the effects of chronic disease and multimorbidity on health resources and patient welfare. It has been posited that the average age of the general veterinarian-attended horse population of the UK is also increasing, and therefore it could be assumed that chronic diseases and multimorbidity would pose an increasing risk here also. However, evidence for this trend in ageing is very limited, and the current prevalence of many chronic diseases, and of multimorbidity, is unknown. Using text mining of firs...
Cardiac and Respiratory Disease in Aged Horses. Respiratory and cardiac diseases are common in older horses. Advancing age is a specific risk factor for cardiac murmurs and these are more likely in males and small horses. Airway inflammation is the most common respiratory diagnosis. Recurrent airway obstruction can lead to irreversible structural change and bronchiectasis; with chronic hypoxia, right heart dysfunction and failure can develop. Valvular heart disease most often affects the aortic and/or the mitral valve. Management of comorbidity is an essential element of the therapeutic approach to cardiac and respiratory disease in older e...
The effect of temperature changes on in vitro slow wave activity in the equine ileum. Slow waves are rhythmic pacemaker currents generated by the gastrointestinal pacemaker cells, the interstitial cells of Cajal, and represent the rate-limiting step for small intestinal smooth muscle contractions. Therefore, factors that affect slow wave activity may also influence contractile activity. It is not known how temperature changes may influence slow wave activity in the horse. This could be of relevance during colic surgery if cooling of exposed intestine resulted in reduced slow wave activity potentially exacerbating post operative ileus. Objective: To evaluate the effect of temper...
Crystalloid and colloid therapy. Fluid therapy is a cornerstone of emergency medicine, but equine practitioners should be aware of recent developments that have modified previous recommendations. First, new emphasis on the avoidance of hyperchloremia suggests that crystalloids with a lower chloride concentration may be more appropriate for use. Second, modifications to the understanding of the Starling equation suggest that the benefits of colloids may be more limited than previously thought. In addition, the negative effects of fluid overload on morbidity and mortality are becoming increasingly recognized. Although more spec...
Morbidity, mortality, and risk of general anesthesia in horses. General anesthesia in horses carries an increased risk of morbidity and mortality compared with other species. In recent years the number and complexity of epidemiologic studies in equine anesthesia has increased. The ability to interpret such studies and understand epidemiologic terminology is vital for veterinarians for them to make potential improvements to their anesthetic practice and to allow them to communicate effectively the findings of such studies to colleagues and owners. This article provides the equine clinician with a basic understanding of the methodologies that can be used in ...
Rhodococcus equi pneumonia in the foal–part 1: pathogenesis and epidemiology. Rhodococcus equi pneumonia is a worldwide infectious disease of major concern to the equine breeding industry. The disease typically manifests in foals as pyogranulomatous bronchopneumonia, resulting in significant morbidity and mortality. Inhalation of aerosolised virulent R. equi from the environment and intracellular replication within alveolar macrophages are essential components of the pathogenesis of R. equi pneumonia in the foal. Recently documented evidence of airborne transmission between foals indicates the potential for an alternative contagious route of disease transmission. In the...
Internet-based survey of horse owners for mortality and morbidity related to equine influenza in the 2007 Australian epidemic. Anecdotally, some sections of the horse community were under the impression that there was a high mortality rate in horses in 2007 because of the EI epidemic. A survey of horse deaths in the Hunter Valley of New South Wales (NSW) in 2007 indicated that there were few infections and deaths attributable to equine influenza (EI) infections in foals, but other authors found a very high seroprevalence across all age classes. This study aimed to generate objective information on mortality and morbidity rates associated with EI in Australian horses during the 2007 epidemic.
Adrenocortical insufficiency in horses and foals. The adrenal cortices produce various steroid hormones that play vital roles in several physiologic processes. Although permanent adrenocortical insufficiency is rare in all species, emerging evidence in both human and equine medicine suggests that transient reversible adrenocortical dysfunction resulting in cortisol insufficiency frequently develops during critical illness. This syndrome is termed relative adrenal insufficiency (RAI) or critical illness-related corticosteroid insufficiency (CIRCI) and can contribute substantially to morbidity and mortality associated with the primary disease. ...
Pulmonary intravascular macrophages and endotoxin-induced pulmonary pathophysiology in horses. Endotoxemia causes significant mortality and morbidity in horses. The mechanisms underlying this complex pathophysiology remain unclear. Therefore, effective tools to treat endotoxemia in horses are lacking. Furthermore, the multifactorial and multiorgan pathophysiology of equine endotoxemia has not been fully addressed, especially the lung injury associated with endotoxemia. Within the context of the broader picture of endotoxemia and lung injury, we offer a perspective on the roles of pulmonary intravascular macrophages in endotoxin-induced lung inflammation in horses. L’endotoxémie est u...
Use of ultrasound to evaluate outcome following colic surgery for equine large colon volvulus. The post operative response of the large colon wall after a surgically corrected large colon volvulus (LCV) has not been investigated. Objective: To use transabdominal ultrasound to monitor the post operative change in large colon wall thickness following surgical correction of LCV. Objective: A prolonged period to colon wall involution is correlated with an increased rate of post operative morbidity and mortality. Methods: A prospective clinical study including horses that presented to the North Carolina State University Veterinary Teaching Hospital for colic between September 2006 and March,...
Descriptive epidemiology of fracture, tendon and suspensory ligament injuries in National Hunt racehorses in training. While fractures and tendon injuries are known to be important diseases in National Hunt (NH) racehorses during racing, there are no accurate estimates of their incidence in NH training yards. Objective: To estimate the incidence of fractures and tendon and suspensory ligament injuries (TLIs) in NH racehorses in training; to describe the injuries incurred and to compare injury incidence rates by horse age, trainer, gender and background (ex-flat vs. ex-store horses). Methods: Cohort data were collected from 14 UK NH training yards for 2 racing seasons. Daily exercise regimens and details of fra...
Nutrition of critically ill horses. Nutritional supplementation is becoming the standard of practice in equine medicine, although there are minimal data on nutritional support in critically ill horses and its association or effect on morbidity and mortality or length of hospital stay. Horses can be fed orally and when that is not possible, intravenously or parenterally. Enteral feeding is less expensive, more physiologic, improves immunity, and is easier and safer. This article reviews available information on the development of a nutritional plan for critically ill horses, and describes methods for and complications of enteral ...
Complications associated with equine arthroscopy. Arthroscopic complications are infrequent but when they occur can cause significant morbidity in the equine patient. This article reviews intraoperative and postoperative complications along with ways to avoid them. Additionally, therapeutic methods of managing these complications also are discussed.
Colic: nonsurgical complications. Colic is a serious disease of the horse and may require surgical correction. Postoperative complications may result in an increase in short-term morbidity and mortality. Commonly encountered nonsurgical complications are detailed. Anticipation and timely treatment of common postoperative complications after colic surgery may improve overall survival.
Complications in equine anesthesia. General anesthesia of horses entails considerable risk of morbidity and mortality. A large-scale, multicenter study reported that the death rate from non-colic-related anesthetics was 0.9%, while the perianesthetic mortality rate at a single, busy equine surgical practice was somewhat more favorable, at 0.12%. While any perianesthetic death is devastating, mortality figures alone do not reflect the overall morbidity of equine anesthesia in terms of nonterminal events or injuries related to recovery. In some circumstances, recognition of perianesthetic complications may allow appropriate interv...
Estimation models for the morbidity of the horses infected with equine influenza virus. Estimation formulas for the morbidity of horses infected with equine influenza virus by linear regression, logistic regression and probit transformation were developed, using data from the outbreak at the Sha Tin Racing Track in Hong Kong in 1992. Using these formulas, we estimated the equine influenza virus morbidity rates at training centers belonging to the Japan Racing Association (JRA) in October 1997 and in October 1998. In 1998 JRA started a new vaccination program, and every horse must now be vaccinated twice per year. At that time, the vaccine included two US lineage virus strains, th...
Epidemic of equine influenza among vaccinated racehorses in Japan in 2007. On August 2007, we encountered equine influenza epidemic by Florida sub-lineage strain (H3N8) in Japan Racing Association's facilities where 4142 racehorses in total were stabled. The number of new febrile cases sharply increased, but the occurrence was rapidly calmed down within 2 weeks. The morbidity rate in these facilities was 12.8% and the subclinical infection rate of healthy racehorses examined by rapid antigen detection tests was 19.4% at the early stage of epidemic. The serological studies along with the low morbidity rate and the existence of numbers of asymptomatically infected race...
Equine-related injury: a retrospective analysis of outcomes over a 10-year period. Morbidity and financial loss caused by equine-related injuries may be significant. The purposes of this study were to determine the patterns of equine-related injury and the impact on outcomes. Methods: A 10-year retrospective review of equine-related injuries was performed. Age, gender, mechanism, injury severity score, Glasgow Coma Score, length of stay, surgical interventions, and mortality were assessed. Results: Of 80 emergency department evaluations, 76 patients were admitted and form the basis of this study. The most frequent mechanism of injury was fall (68%), followed by crush injurie...
Specific causes of morbidity among Swedish horses insured for veterinary care between 1997 and 2000. The principal aim of this study was to analyse the incidence of disease due to general and more specific causes among over 100,000 horses covered by complete insurance for veterinary care by a Swedish insurance company during 1997 to 2000. The database was used to calculate the rate of cause-specific morbidity in horses of different ages, sexes and breed groups kept in different regions with different human population densities. The joints were the most commonly affected part of the body, followed by unspecified/whole body, the skin and the digestive system. The most common specific diagnosis ...
Equine neonatal sepsis. Neonatal infection remains a leading cause of morbidity and mortality in the equine industry, despite advances in prevention and treatment. Many factors can influence a foal's risk for the development of sepsis in the peripartum period. This article discusses those factors, causative organisms, and therapeutic options. Factors that influence prognosis and potential preventative strategies also are addressed.
Resuscitation and emergency management for neonatal foals. Early intervention can dramatically alter outcome in foals. Cardio-pulmonary cerebral resuscitation can be successful and clinically worthwhile when applied to foals that arrest as part of the birthing process. Readily available equipment and an ordered plan starting with addressing the respiratory system (airway and breathing) followed by the circulatory system (circulation and drugs) are the keys to success. Hypoglycemia is common in foals that are not nursing and in septic foals. Support of serum glucose can be an important emergency treatment. Respiratory support with oxygen therapy should...
Coagulopathy in the equine critical care patient. Disseminated intravascular coagulation (DIC) is a clinicopathologic syndrome resulting from a multitude of underlying causes that manifests itself clinically as hemostatic/fibrinolytic failure. There is much debate on the definition, diagnosis, and treatment of DIC, a situation that is most likely the result of the multifaceted clinical presentation of the syndrome and the fact that patient outcome is often influenced by the underlying disease process. The fact that DIC increases morbidity and mortality in critical care patients is well established, but the exact mechanism of what specifically...
Use of the recovery check in long-distance endurance rides. In an attempt to reduce morbidity, an additional veterinary examination is performed at the end of the hold time--the Recovery Check (RC)--of the last vet gate of all long distance endurance rides held in France. At the RC, a normal FEI-type inspection is performed combined with a cardiac recovery index (CRI): the heart rate is taken before (HR0) and 1 min after (HR1) the horse trotted for 30 m out and back. Results from 12 (130 and 160 km long) rides and based on 489 horses were analysed. Of all RC performed, 10.4% lead to elimination of the horses and lameness was the most frequent reason (4...
Long-term survival of equine surgical colic cases. Part 1: patterns of mortality and morbidity. Postoperative complications and mortality can occur many weeks or months after colic surgery. We are interested in the long-term outcome of these cases. This study documents patterns of mortality and morbidity among 341 horses that recovered from colic surgery March 1998-August 2000. The progress of each horse was rigorously followed by periodic telephone and postal questionnaires. Event time data were recorded for each animal and a total of 321 horse years of survival, together with death from all causes, colic-related death and various postoperative complications. Postoperative survival (of ...
