Heart-Rate Variability May Indicate Outcome Of Colic Cases

Colic, a catch-all term for abdominal pain in horses, can be caused by a variety of reasons; it can be a life-or-death situation and requires immediate veterinary care. Colic is stressful for horses; horses that are actively colicking have an increased cortisol level and heart rate.  A new study shows that heart-rate variability may be a key indicator in assessing the possible outcome of colic cases.

Drs. Heidrun Gehlen, Maria-Dorothee Faust, Remigiusz Grzeskowiak and Dagmar Trachsel of the Free University in Berlin, and Dr. Remigiusz Grzeskowiak of the University of Tennessee wanted to determine if horses showed varying stress levels with different types of colic, therefore warranting different treatment strategies.

The team used 43 horses admitted to two different equine hospitals for colic and categorized them into three groups: surgical, conservative (non-surgical) and euthanized. The scientists studied the blood tests and heart-rate variability of the horses at admission, 24 hours after admission and at discharge.

The team found that heart rate and cortisol levels decreased the day after admission and on the day of discharge in both the surgical and non-surgical groups of horses, indicating that they were not as stressed as they were during their intake into the hospital.

However, decreases in heart rate and cortisol levels were not seen in the horses that were ultimately euthanized. The difference in heart rate in the euthanized and non-euthanized horses was most obvious the day after admission.

The team concluded that heart-rate variability can offer treating veterinarians important information on the stress level of colicking horses and may be helpful in assessing the possible outcome. They suggest further studies be completed.

Read the full study here.

Read more at HorseTalk.

The post Heart-Rate Variability May Indicate Outcome Of Colic Cases appeared first on Horse Racing News | Paulick Report.

Source of original post

Can Surgical Removal Of A Mare’s Ovaries Fix Unwanted Behaviors?

A Danish study investigated if removing a mare's ovaries could offer relief from unexplained unwanted behavior. The changes in behavior were assessed by the owners of the horses. Some mares used in the study had ovarian cancer; others had no veterinary-diagnosed reason for their unwanted behavior.

Removing the ovaries was final attempt to resolve the unwanted behaviors as drug use to stop their reproductive cycles had failed and no issues with their reproductive tract could be found. Unwanted mare behavior can range from being uncooperative to aggression aimed at humans or other horses.

Drs. Daniel Taasti Melgaard, Martin Soendergaard Thoefner, Trine Stokbro Korsgaard, Morten Roenn Petersen and Hanne Gervi Pedersen, used the records of 28 mares that had their ovaries removed six to 24 months earlier and followed up with the horse owners, asking them to complete a questionnaire and respond to a telephone interview. Ten of the horses in the study had normal ovaries, 14 of the mares had ovarian cancer in one or both ovaries, and the other ovaries of the other horses were not examined for the presence of cancer.

Eight out of the ten mares (80 percent) with normal ovaries had improved rideability after their ovaries were removed; rideability improved in 57 percent (eight out of 14) in the mares with ovarian cancer. Mare behavior improved in about 40 percent of the cases studied.

The researchers conclude that mares without ovarian cancer may benefit as much from ovary removal as mares with ovarian cancer, showing improved rideability and behavior, though there is no obvious explanation as to why mares with normal ovaries benefited. The team noted that owner perception of improved behavior could be a placebo effect because they assumed the operation would work. They also stress that horses have a through diagnostic workup to rule out other issues before an ovariectomy is performed,

Read the full study here.

Read more at HorseTalk.

The post Can Surgical Removal Of A Mare’s Ovaries Fix Unwanted Behaviors? appeared first on Horse Racing News | Paulick Report.

Source of original post

Verified by MonsterInsights