MR
Author

Marie Rosenthal

41 Stories
Latest story
Recognizing the laminitic horse

The healing of laminitis that is not diagnosed early or managed correctly may no longer contribute to the mechanical function of the tissue, so early detection is crucial. However, recognition can be tricky because there are a variety of clinical presentations, and the condition can be subclinical, according to Andrew van Eps, BVSc, PhD, DACVIM-LA, who spoke at…

August 2026
Musculoskeletal
Read article
More stories 23
GI/Colic
Integrate nutrition with medical management for IBD

Nutrition must be integrated with the medical treatment of equine inflammatory bowel disease (IBD) to effectively manage the condition, according to equine nutritionist Tommaso Danese, DVM, PhD, ECVCN Res, of the University of Parma, in Italy.

Infectious Diseases
Diclazuril quickly reaches therapeutic MIC levels in CSF

A recent study found that diclazuril (Protazil, Merck Animal Health) reached the minimum inhibitory concentration (MIC) of Sarcocystis neurona in a horse’s cerebrospinal fluid (CSF) within 12 hours of 1 oral dose.

Infectious Diseases
Two species of Neorickettsia likely leading to more Potomac Horse Fever cases

Although Neorickettsia risticii accounts for most Potomac Horse Fever (PHF) cases, Neorickettsia findlayensis has been identified in multiple locations across the United States. However, this causative agent often goes unrecognized, according to Virginia Logue, DVM, a third-year large animal internal medicine resident at the University of Pennsylvania College of Veterinary Medicine. A recent study found that nearly one-third…

Pain
Are horses really naughty or unwilling?

Recent studies have shown that a horse’s negative behavior may be related to pain, according to Sue Dyson, MA, VetMB, PhD, DEO, DECVSMR, who spoke at the ACVIM Forum 2026 in Seattle.

Musculoskeletal
Developing Effective, Targeted Intra-articular Therapy

An estimated 60% of lameness cases—a leading cause of performance loss—are attributed to osteoarthritis. Cricket Russillo, DVM, ISELP-Cert, discussed ways to develop effective, targeted treatment plans for lameness patients that need intra-articular therapy.

Endocrinology
Survey: You can help increase the understanding of endocrine diseases

As understanding of equine endocrinology has expanded, the incidence of equine endocrine or metabolic diseases appears to be increasing. Does this increase represent more cases, or just better recognition?

Musculoskeletal
Can you predict which horses will come up lame after a race?

Perhaps the most difficult job for veterinarians working at the racetrack is predicting which horse is going to suffer a catastrophic injury or lameness while racing. Tim Parkin, BSc, BVSc, PhD, DECVPH, FHEA, FRCVS, a veterinary epidemiologist at the Bristol Veterinary School, University of Bristol, in England, and his colleagues are working on a predictive model to make…

Education
Horse therapy benefits extend beyond children with ASD

Two recent studies suggest that equine-assisted activities and therapies (EAATs) have a positive effect not only on children with autism spectrum disorder (ASD), but also on their caregivers.

Foal
REHIP Has Little Effect on Foal Electrolytes

There is no vaccine to protect young foals against Rhodococcus equi bronchopneumonia, so R. equi hyperimmune plasma (REHIP) is often used for immunoprophylaxis.

Musculoskeletal
Alternative Acupuncture Modalities in Horses

Both electroacupuncture and laser acupuncture appear to be alternative methods for pain relief for horses with thoracolumbar back pain, but electroacupuncture provided better pain relief compared with controls, according to a presentation at the 71st AAEP Annual Convention in Denver.

Lifestyle
Dr. Sarah Reuss: Sitting Between Generations, Bringing Them Together

As a member of Generation X, Sarah Reuss, VMD, DACVIM, hopes to bring people together during her tenure as president of the AAEP.

Infectious Diseases
Anatomy of an EHV-1 Outbreak: Not Their First Rodeo

Many states west of the Mississippi River suffered an outbreak of equine herpesvirus-1 (EHV-1) in the final days of 2025. For Ben Buchanan, DVM, the outbreak began as most emergencies seem to—just as everyone was ready to call it quits for the day.

Musculoskeletal
Managing Vitamin E Deficiency in Today’s Horse

One reason there are fewer horses today suffering with neuromuscular disease is because veterinarians better understand the importance of vitamin E in the horse’s diet, according to Sarah F. Colmer, VMD, DACVIM-LAIM, an internal medicine specialist and neurology fellow at the University of Pennsylvania School of Veterinary Medicine, in Philadelphia.

Top Issues for New Veterinarians Looking for a Job

It might surprise practice owners to know that informal surveys conducted by practice owner Christine Staten, DVM, indicate that salary is not necessarily the most important factor for new veterinary school graduates seeking a position.

Reproduction
Should You Use Antibiotics to Combat Breeding-Induced Endometritis?

Flushing the uterus, rather than infusing antibiotics, is a better first response for a mare at risk for persistent breeding-induced endometritis, according to Tom Stout, PhD, ECAR, DRDVA, who spoke at the BEVA Congress 2025, in Birmingham, England.

Musculoskeletal
Limb Wounds Can Kill Careers

Higher levels of synovial amikacin can be found after IV regional limb perfusion if the perfusate is given at a slower rate, according to a recent study by Laurel K. Saldinger, DVM, and her colleagues at the University of California, Davis.

Surgery
Should Horses Be Fasted Before Elective Procedures?

All animals are at risk for gastrointestinal dysfunction following general anesthesia. In horses, postanesthetic colic drastically increases the morbidity, mortality and expense associated with anesthesia for elective procedures. according to Charlotte K. Barton, BVetMed, MS, DACVS-LA, an equine surgery resident, now a postdoctoral fellow, at Colorado State University, the standard of care has been to fast horses between…

Musculoskeletal
Back Pain? Maybe It’s the Saddle

Ill-fitting saddles are common, and they can lead to significant pain for horses, but the problem often goes unrecognized and undiagnosed, according to Kevin K. Haussler, DVM, DC, PhD, DACVSMR, who spoke at the AAEP 70th Annual Convention in Orlando, Fla.

Infectious Diseases
Obtaining a Good Sample Essential for Diagnosing Strangles

The diagnosis of strangles is done primarily by looking for the causative organism, Streptococcus equi subspecies equi, so obtaining a good sample at the right time is essential for increasing the sensitivity of the tests, Camilo J. Morales, DVM, MS, DACVIM, said at the AAEP’s 70th Annual Convention, held in Orlando, Fla.

Musculoskeletal
Managing Hoof Wall Defects

Successful management of hoof wall defects entails addressing the underlying causes and stabilizing the foot with the appropriate farriery, which should be initiated as quickly as possible, according to Stephen E. O’Grady, DVM, MRCVS, owner of Virginia Therapeutic Farriery, in Keswick, Va.

News Notes
Soaking Hay Helps Reduce Particular Matter Exposure in Stables

Particulate matter (PM) is a leading cause of equine asthma, so being able to monitor the air quality in the barn could improve the management of equine asthma, according to researchers from Purdue University.

Musculoskeletal
How Useful Are Sesamoid Radiographs During Prepurchase Exams?

Radiographs of the proximal sesamoid bones could be a useful tool in assessing a 1- or 2-year-old’s future racing career during the prepurchase exam—depending on the criteria used to assess bone changes, according to Christopher E. Kawcak, DVM, PhD, DACVS, DACVSMR, a professor of equine surgery at Colorado State University.

Reproduction
Stop Being a ‘Pajama Vet’

Jutta Sielhorst, DMV, DECAR, used to be a “pajama vet” during breeding season, waking up periodically during the night to scan the mare to find the best time to artificially inseminate (AI) her.