Equine Collapse Reviewed

July 17, 2013

Equine collapse frequently presents a diagnostic challenge for veterinarians, and many cases go unsolved.... Read More


Concerning Collapse

February 05, 2013

My horse collapsed at a show, but had normal vitals upon standing. Now she's lethargic. What could be wrong?... Read More


Neurologic Problems in the Foal

May 15, 2011

Nothing disrupts the joy of foal ownership like the observation of potential problems: A disinterest in nursing, a depressed attitude, strange mannerisms, or seizures could mean a foal is suffering from some serious neurologic problems. During a ... Read More


Equine Collapse: Once in a Lifetime?

January 08, 2011

A horse that collapses while under saddle is both a hazard to himself and others. ... Read More


Taming the Beast: A Review of Equine Neurologic Disease

June 01, 2010

To take the dizzy factor out of understanding neurologic disease in horses, I.G. Joe Mayhew, BVSc, FRCVS, PhD, Dipl. ACVIM, ECVN, has dedicated much of his career to helping practitioners and owners understand equine neurology.... Read More


Horse Sleep Disorders and Seizures Reviewed for Equine Vets

November 02, 2009

If you have ever witnessed a horse having a so-called "episodic event," you aren't likely to soon forget it, particularly if the event occurred while the horse was under saddle. Episodic events are defined here as unusual or... Read More


Sleep and Sleep Disorders in Horses, AAEP 2008

March 10, 2009

Unlike humans, adult horses average only about three to five hours of sleep per day, with sleep events occurring intermittently throughout the day and night, with most occurring at night. Lack of sleep or a sleep disorder has the potential to impact ... Read More


Unsettled Slumber

August 01, 2007

My horse might have sleeping problems. I have seen him almost fall over trying to sleep. Is this normal?... Read More


Fainting Foals, Sleepy Horses

April 01, 2006

Humans have been fascinated with narcolepsy for centuries. The sight of an otherwise normal person suddenly lapsing into unexplainable deep sleep was cause for curiosity, if not amusement, even after scientists in the late 1800s found that... Read More



July 01, 2004

In any of the equine behavior literature that I have read, I am unable to find any description of the sleeping behavior we see in our retired broodmare (17 years old). She has functioned as the watch horse in the small herd she was from, and she... Read More


Senior Citizen Surgery

July 01, 2003

When a senior horse needs surgery, there is a concern that he will not survive the procedure because of age. ... Read More


Equine Narcolepsy

March 01, 2001

As Jennifer Johnson stood in the lineup awaiting the judge's decision with her recently acquired Quarter Horse mare Dobie Breeze, the last thing she expected was that her mount suddenly would collapse in a heap beneath her. But that's just what... Read More


Narcolepsy in Horses

February 01, 2001

I am requesting information regarding narcolepsy. I haven't found any sources with any information.


In a book I edited with Warwick Bayly, BVSc, PhD, Dipl. ACVIM, entitled Equine Internal MedicineRead More