Respiratory Problems

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Study: Epistaxis Has 'Complex Hereditary Basis'

Researchers have determined that epistaxis—the most severe form of exercise-induced pulmonary hemorrhage (EIPH) in which blood runs from the horse’s nostrils—has a genetic basis. And, according to a group from Australia, a combination of genes as well as exterior influences can lead to epistaxis.

Strangles Signs, Risk Factors, and Complications Evaluated

If your horse had strangles, would you be able to tell? He'd probably have those token swollen lymph nodes and maybe a fever, right? It's possible, but researchers recently determined that these signs alone might not be the only ones that should prompt a strangles test. In fact, more than a quarter of the horses in their recent research presented ...

Clenbuterol's Impact on Horses' Body Fat Percentage

With any medication comes a risk of side effects. For instance, long-term phenylbutazone administration to treat a musculoskeletal issue can result in gastrointestinal problems; pergolide to treat Cushing's disease can cause a decreased appetite; and vaccine administration to protect against disease can cause injection site swelling and muscle sorenes...

Equine Infectious Disease Outbreak Response 101

From equine herpesvirus and influenza to strangles and coronavirus, infectious diseases can cause quite a stir in the horse industry—quarantines, canceled competitions, and, in some cases, even horse deaths or the threat of human infection. And something all horse owners and veterinarians should know is how to respond in the face of an infectious di...

Are Coughing and Nasal Discharge Early Indicators of Heaves?

Horse owners might dismiss mild coughing or nasal discharge in their horses, but could these two inflammatory airway disease (IAD) signs be linked to a more serious condition? Recent research results from the University of Berne's Swiss Institute of Equine Medicine indicate that, yes, these signs could be early indicators of recurrent airway obstructi...

Researchers Study the Genetics of Heaves

Recurrent airway obstruction (RAO, also called heaves) appears to have a genetic basis, but that genetic basis isn’t the same in all horses, Swiss researchers say. While the clinical signs can be the same, the disease's underlying genetic mechanisms can vary from one horse family to another.

Researchers Study Coronavirus Outbreaks in Adult Horses

Equine coronavirus, or ECoV, has been on many veterinarians' radars lately: While they've long known the virus is commonly found in foals, it's recently been implicated in several outbreaks among adult horses. So to better understand the disease it causes and how to best diagnose and manage outbreaks, researchers recently completed a study on ...

No Additional Signs of EHV-1 at Fair Hill

The horse quarantined with a suspect case of equine herpesvirus-1 (EHV-1) at the Fair Hill Training Center, in Elkton, Md., will be retested next week, according to a statement from Kathleen Anderson, DVM, owner and manager of the Elkton-based Equine Veterinary Care, PC.

Can Vaccination Protect Horses from Neurologic EHV-1?

In the equine industry three simple letters, when said in order, can silent a room of horsemen, turn a showground into a ghost town, and send shockwaves through barns. They're E, H, and V, and they stand for equine herpesvirus-1, a contagious equine virus that can cause serious neurologic problems in affected horses. Fortunately for owners, veterinari...

Veterinarians Making Progress on National Equine Health Plan

Equine herpesvirus myeloencephalopathy (EHM) put dozens of show horses at risk for infection after they were exposed to a sick horse at a single competitive event in Utah in 2011. Unaware of the exposures, owners of these horses dispersed the show animals to 19 states and several Canadian provinces, unleashing the potential to infect others in epidemic pr...

Managing Exercise-Induced Pulmonary Hemorrhage in Racehorses

Racehorses must be healthy and at their peak fitness to be successful. One commonly combated health condition—exercise-induced pulmonary hemorrhage, or EIPH—can be performance-limiting and even deadly among these athletes. And as racehorse medication reform has taken center stage in recent years, the racing world has been rife with controversy...

Researchers Review Equine Multinodular Pulmonary Fibrosis

Since it was first identified in 2007, deadly equine multinodular pulmonary fibrosis (EMPF) has been reported in numerous horses across North America and Europe. While still considered a rare disease, EMPF appears to be related to a very common one—equine herpesvirus (EHV)—and early treatment appears to be the main hope for survival.

Top Foal-Related Studies of 2012-'13

Even though they're small in stature, foals can have some big health problems. And researchers around the world are continually working to better understand these health problems and find more effective ways to treat them. At the 2013 Society for Theriogenology Conference, held Aug. 7-10 in Louisville, Ky., Chris Sanchez, DVM, PhD, Dipl. ACVIM, associ...

Equine Emerging Diseases Reviewed

Tracking emerging and re-emerging equine diseases helps the horse world attempt to stay a step ahead of economically devastating and deadly outbreaks. For that reason, equine veterinarians and industry members gathered on June 14, for Merck Animal Health’s "Equine Emerging and Re-emerging Disease Luncheon" at the 2013 American College of V...

Drug Peramivir Could Help Horses Suffering from Flu

Flu season for horses can be any season. And considering that even horses vaccinated against the equine influenza virus (EIV) can still “catch the flu,” this disease is cause for concern. A group of Japanese researchers, however, recently evaluated a flu inhibitor in horses and found that it could help EIV-infected animals recover more quickly.

AAEP, AHC Partner to Prevent Equine Disease Outbreaks

When a horse contracts a disease, the owner or caretaker usually focuses solely on getting the horse healthy again and protecting others on the farm from illness. But in reality, certain ailments could have community-, region-, and even industry-wide effects. For instance, an equine viral arteritis or contagious equine metritis outbreak could shutter the ...

AHC, AAEP Issue Letter on Equine Disease Outbreaks

The American Horse Council and the American Association of Equine Practitioners issued an open letter to the horse industry March 28 regarding equine disease outbreaks in the United States. In their communication, the organizations outline current horse health issues facing the industry and seek equine community participation in developing a National Equi...

Triaging Acute Equine Neurologic Emergencies

A horse owner's day can go from great to horrific in a matter of seconds if he or she arrives at the barn to find their charge either staggering around the field or completely unable to rise. A prompt call to the veterinarian is warranted in these scenarios, but what should an owner expect when the veterinarian arrives?

Equine Rhinitis Virus Prevalence in Louisiana Racehorses Evaluated

Infectious respiratory diseases such as equine influenza and equine herpesvirus can have a significant welfare and economic effect on the horse industry, and researchers and veterinarians have devoted much time and money to trying to control and prevent outbreaks. Far less is known, however, about another infectious respiratory disease: equine rhinitis vi...

Minnesota EHV-1: Two Horses in Stable Condition

Two horses are in stable condition while being treated for neurologic equine herpesvirus-1 (EHV-1) at the University of Minnesota (UM) Large Animal Hospital, according to the treating clinician. Both animals--who reside at the same Wright County, Minn., farm--have tested positive for the virus since being admitted to the clinic this week. A third horse (t...

EIPH and Furosemide Use in Racehorses Explained

One of the most controversial topics in Thoroughbred racing today is the race-day use of furosemide (commonly called Salix or Lasix). The drug is used to lessen the effects of a respiratory condition called exercise-induced pulmonary hemorrhage (EIPH), characterized by bleeding into the lungs or out the nose during exercise. In the midst of rumor and fact...

Study: Nanoparticles to Deliver Therapy for Heaves in Horses

Scientists at Ludwig Maximilians University’s Department of Veterinary Medicine in Munich, Germany, are applying nanoscale molecule research in human allergy suppression to horses. In a recent study the team designed and administered a nanoparticleto deliver CpG-ODN (an immunostimulating DNA that has been shown to suppress allergies in humans) to ho...

Neurologic EHV-1: An Overview

The neurologic form of equine herpesvirus-1 (EHV-1, also called myeloencephalopathy) is highly contagious and multiplies within its host very rapidly, making early detection and prompt treatment paramount goals in disease control. During a presentation at the 2011 Western Veterinary Conference, held Feb. 20-24 in Las Vegas, Nev., Steve Reed, DVM, Dipl. AC...

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