Chronic Bladder Eversion

A 7 yo QH mare, 4 month pregnant.

Bladder eversion is mostly associated with parturition and third degree perineal lacerations. This just goes to show that horses don’t always read the books we do. The Bladder was in this position for about a year and a half. She was bread this way. 4 months pregnant.

The Bladder is reverting through the urethral sphincter so that exposed mucosa extends beyond the ventral commissure of the vulva.

An attempt to reverse the bladder back in its place was made at first, successful, it did not last long. After 2-3 hours the bladder was out again. DMSO and Cortisone were used to diminish the inflammation of the bladder, What seamed to be making the mare strain again and again an by this reverting the bladder was the palpation of the neck of the bladder. Local lidicaine was used as well.

On the third days a foley catheter (could not find one so I used a small tracheal tube intended for small animals) was placed inside the bladder (after replacing the everted bladder, which took a good hour). The cuff was inflated. A pursestring suture was placed around the the catheter. This suture helped keep the catheter in place and the urine dripping only from the catheter. The mare stopped straining and urine was coming out of the catheter. DMSO, lidocaine and Cortisone were used in the first 24 hours after surgery, to reduce the inflammation and the straining from the stimulus of the neck of the bladder.

Three weeks have passed and the mare is doing well.