Marie Rosenthal, MS

Study: MRI Beneficial for Diagnosing Some Leg Lamenesses

Chronic lameness can be a frustrating problem for owners of equine athletes. When nerve blocks, radiographs (X rays), and ultrasounds yield no definitive answers, where can a veterinarian turn next? According to recent study results, magnetic resonance imaging (MRI) appears to be a beneficial next step for diagnosing some leg lamenesses when a veterinaria...

Are High-Speed Treadmills Safe for Horses?

People often hop on a treadmill without giving safety a second thought, but putting a horse on a treadmill is a different story. While treadmills aren't uncommon in veterinary hospitals and are gaining popularity in nonclinical settings for exercise or conditioning purposes, some owners, trainers, and veterinarians often question the safety of these i...

Supporting Limb Laminitis: Prevention is the Best Treatment

When your horse suffers a major injury, such as a severely broken bone in a leg, the last thing you might be thinking about is laminitis. But laminitis should certainly be on your radar, as many horses that suffer serious limb or hoof injuries develop supporting limb laminitis, a condition that can prove fatal even if the original injury is well on its wa...

Calcium and Phosphorus Ratios in Equine Diets

Ensuring your horse maintains a balanced diet is one of the most important aspects of horse care. In particular, ensuring your horse maintains a balanced calcium and phosphorus ratio in his diet is critical, as horses with calcium or phosphorus deficiencies or toxicities are prone to various disorders, according to Ramiro E. Toribio, DVM, MS, PhD, Dipl. A...

Magnesium Supplementation: Is It Necessary?

In an equine society dominated by supplements for everything imaginable--from joint health and calmers to antioxidants and vitamins and minerals--some horse owners likely wonder what, if any, feed additives they should provide their horses. Take magnesium for example: Science has shown us that horses require this macromineral to keep their bodies function...

Navicular Disease: Possible New Treatment Option from Human Medicine

In certain cases of navicular disease, drilling a hole into the navicular bone--a procedure called core decompression that's commonly used to treat human osteonecrosis (bone death caused by poor blood supply to the area)--might provide a new treatment option for veterinarians. According to Carl Kirker-Head, MA, Vet MB, Dipl. ACVS, ECVS, associate prof...

Dieting Tips for Obese Horses

According to Alex Dugdale, MA, VetMB, DVA, Dipl. ECVA, MRCVS, a senior lecturer in the school of veterinary science at the University of Liverpool in England, "obesity (in horses) creeps up on us." When it comes to battling obesity, keeping the horse healthy and happy while still helping him drop weight is of paramount importance.

Researcher: Realistic Expectations Key to Managing Osteoarthritis

Osteoarthritis (OA) is an incurable joint condition that affects horses of all ages and is thought to have a hand in up to 60% of all lameness cases. According to Janny C. de Grauw, DVM, PhD, from the Department of Equine Sciences at Utrecht University in The Netherlands, who recently co-authored a paper on pain in horses with OA, management of the diseas...

Genital Cancer in Horses Linked to Newly Discovered Virus

A newly discovered virus might be a cause of equine genital cancer, an aggressive type of skin cancer that affects male and female horses of all breeds, according to Tim Scase, BSc, BVM&S, PhD, MRCVS, Dipl. ACVP, director of Bridge Pathology Ltd., a diagnostic immunohistochemistry laboratory in the United Kingdom. Equine genital cancer is thought to b...

Equine Collapse: Once in a Lifetime?

A horse that collapses while under saddle is both a hazard to himself and others. What does this mean for his potential as a mount, though? For many horses, suffering an episode of collapse (when a horse falls suddenly with or without recumbency--the inability to stand--or loss of consciousness) is a once-in-a-lifetime occurrence, according to a Scottish ...

Pergolide Remains Treatment of Choice for PPID

Pituitary pars intermedia dysfunction (PPID), often called equine Cushing's disease, has been treated with the drug pergolide for years. The main reason pergolide was initially the treatment of choice was largely based on the drug's effectiveness in treating people with Parkinson's disease, a human endocrine disorder, according to Ronette Gehr...

Individualized Hay Feeding Program Best for Horses

Just like people, some horses have a high metabolism and can eat more food without becoming overweight. Therefore, it is important to tailor each horse's feeding program to meet his individual needs, according to the results of a recent study by a team of Icelandic researchers.

MRSA: Horses and Handlers Are Sharing More Than Quality Time

A recent study confirms that strains of the methicillin-resistant Staphylococcus aureus (MRSA) bacteria in found in companion animals--including horses--resemble strains found in humans. According to Frances Moore, DVM, veterinary pathologist, and Sanjay Shukla, PhD, molecular microbiologist at Marshfield Labs and Marshfield Clinical Research Foundation i...

Training, Not Coercion, is Key to a Well-Behaved Athlete

The best way to train a horse is to use techniques that "align with the horse's view of the world," according to Paul McGreevy, BVSc, MRCVS, PhD, MACVSc, associate professor of veterinary science at the University of Sydney in Camden, New South Wales, Australia, who recently published a paper on the topic.

Lawsuit: E-Z Pass Overcharges Horse Trailers

Several New Jersey horse owners have filed a lawsuit against the highway toll collecting company E-Z Pass and the Delaware River Port Authority, claiming the electronic toll collection system has overcharged them repeatedly to cross the Commodore Barry Bridge, which spans the Delaware River and connects New Jersey to Pennsylvania.

Study: Shelter-Seeking Behavior Most Common in Poor Weather Conditions

Just because turned-out horses might not use run-in sheds often does not mean these structures are not an important part of husbandry, says Camie R. Heleski, MS, PhD, a Michigan State University instructor and researcher with an interest in studying horse behavior and welfare . Heleski and her colleagues recently completed a study in which they examined d...

A Gene for Speed?

What makes a winner? Just about every breeder and owner has asked and debated this question. Certainly genetics must play a role, or why else breed a winning stallion or mare?

Head to Tail Neonatal Care

With the economy the way it is, many neonatal foals are being managed on the farm rather than being sent to a clinic, according to Kelsey A. Hart, DVM, PhD, Dipl. ACVIM, of the University of Georgia College of Veterinary Medicine, at the recent American Veterinary Medical Association meeting in Atlanta.

More Foals Surviving Dystocia

Foals have a better chance of surviving dystocia if the mare is taken to an equine hospital as soon as the prolonged delivery is recognized, said Katherine Cole MacGillivray, VMD, Dipl. ACVIM, of Haygard Equine Medical Institute in Lexington, Ky., at the ACVIM Forum 2010 veterinary meeting held in Anaheim, Calif.

On-Site Drug Detection May Soon Be Possible

Costas Georgakopoulos, PhD, and his colleagues in Greece are working to create technologies that enable officials to quickly discover whether athletes--animals or people--are using illegal substances or exceeding the allowable levels of legal medications.

Corneal Ulcer Treatment Covered at Vet Conference

With their large, exposed eyes, horses are at risk for diseases of the cornea, the clear outer layer of the eye, said Elizabeth A. Giuliano, DVM, MS, Dipl. ACVO, associate professor of veterinary medicine and surgery at the University of Missouri, at the 2010 Western Veterinary Conference, held Feb. 14-18 in Las Vegas, Nev.

Hormone Therapy Might Prevent Equine Abortion

Veterinarians might be able to prevent abortions in some pregnant mares that show premature mammary development, Dietrich H. Volkmann, BVSc, MMedVet (Gyn), Dipl. ACT, told equine veterinarians at the 2010 Western Veterinary Conference, held Feb. 14-18 in Las Vegas, Nev.

Navicular Syndrome Management Reviewed

Because navicular problems might affect soft tissue as well as bone, MRI is a better diagnostic tool than X ray in these cases, said Robert K. Schneider, DVM, MS, professor at Washington State University College of Veterinary Medicine, and part owner of MREquine, a mobile MRI unit.

Transport Stress and EHV-1

Once a horse is infected with equine herpesvirus-1 (EHV-1), the dormant virus resides in the horse's nervous system, where it can reactivate when the horse's immune system is compromised by stress or illness.

Topical NSAID Permeation Through Horse Skin Investigated

Veterinarians in Argentina recently tried to use versions of the topical NSAID (non-steroidal anti-inflammatory drug) diclofenac made for human pain management on horses, but found horses' skin does not absorb those formulations of the drug as well as human skin does. M. Fabiana Landoni, DVM, PhD, of the Universidad Nacional de La Plata, and colleague...

Researchers Track EHV-5 Incidence, Effects in Europe

Equine herpesvirus-5, which had previously been reported in horses in the United States, is also present in the European horse population, researchers recently reported. They found the virus in horses without any signs of disease (known as subclinical infection) and those with various respiratory signs or fatigue.

Anesthetic Drug Propofol Might have a Role in Equine Sedation

Many medical procedures are performed while the horse is under standing chemical restraint, but anesthesia in horses can be risky. One study cites an almost 2% mortality rate for equine patients within seven days of receiving general anesthesia.

"It may be especially difficult to correctly dose sedative drugs in very old or debilitated patien...

Training Alters Stride in Racehorses

Training mature racehorses produces a decrease in the protraction (extension) time of the forelimb and might reduce the risk of training-induced injuries, according to Marta Ferrari, DrMedVet, PhD, MRCVS, of Park Veterinary Centre in Watford, UK, and colleagues at London's Royal Veterinary College in a new study.

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