Laparoscopic Ovariectomy Diminishes Estrus-Associated Behavioral Problems in Mares

Roessner, H. A.; Kurtz, K. A.; Caron, John P.

doi:10.1016/j.jevs.2015.01.007

Cited by 10 publications

(25 citation statements)

References 13 publications

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“…The study therefore speculated the likelihood of a better response to surgery if response to altrenogest had been observed 9 . However, that study found some cases with a weak response to altrenogest had dramatic improvement to complete resolution of the undesirable behavior and, additionally, correlations did not indicate a response to altrenogest predicted response to ovariectomy 9 . The authors of the current study are unaware of any study comparing horses that responded to altrenogest with those that specifically did not.…”

Section: Discussionmentioning

confidence: 73%

“…One of the most common and effective means of behavior modification in intact mares is the use of altrenogest (Regu‐mate) 9,18 . However, altrenogest is expensive with long‐term administration, 9 requires daily administration, 9 and carries risk for undesirable effects in women administering the medication, 9 which were all concerns expressed by many owners in the current study when giving reasons for pursuit of surgery. The current study found that 90% of mares presenting for an elective ovariectomy had improvement in behavior.…”

Section: Discussionmentioning

confidence: 86%

“…One study specifically assessed behavior in mares that had shown some response to altrenogest as there has been clinical impression that improvements with ovariectomy mirror the response mares have to altrenogest 9 . The study therefore speculated the likelihood of a better response to surgery if response to altrenogest had been observed 9 . However, that study found some cases with a weak response to altrenogest had dramatic improvement to complete resolution of the undesirable behavior and, additionally, correlations did not indicate a response to altrenogest predicted response to ovariectomy 9 .…”

Section: Discussionmentioning

confidence: 99%

“…Prevention of estrus related and bad behavior in mares and mollies is highly desired among sport and pleasure equids 16,17 . One of the most common and effective means of behavior modification in intact mares is the use of altrenogest (Regu‐mate) 9,18 . However, altrenogest is expensive with long‐term administration, 9 requires daily administration, 9 and carries risk for undesirable effects in women administering the medication, 9 which were all concerns expressed by many owners in the current study when giving reasons for pursuit of surgery.…”

Section: Discussionmentioning

confidence: 99%

“…Information is limited in assessing the outcomes of laparoscopic ovariectomies with regard to specific long‐term follow‐up information on behavior changes in mares with bilateral ovariectomy. Despite evidence that ovariectomy can alleviate undesirable behavior in mares 3,5‐9 or provide more consistent behavior in mares, 10 skepticism remains that behavior in mares can be improved in horses with bilateral, elective (no pathologic ovaries) ovariectomy 11‐13 . It has been suggested that ovariectomy may even make undesirable, but normal, estrus‐like behavior worse 11 .…”

Section: Introductionmentioning

confidence: 99%

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Outcome of bilateral equid laparoscopic ovariectomies

et al. 2021

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Objective To assess outcomes and behavior changes associated with bilateral laparoscopic ovariectomies. Study design Retrospective study. Sample population Fifty‐one equids. Methods Medical records were evaluated from equid bilateral laparoscopic ovariectomies from January 2012 to October 2018 with a potential of 6 months follow‐up. Follow‐up information obtained by telephone interviews included behavior before and after surgery. Likelihood ratio chi‐square tests and odds ratios (OR) with 95% CI were calculated where applicable, with statistical significance at p < .05. Results Bilateral ovariectomy was performed in 51 cases, with elective (no pathologic ovaries) ovariectomies performed in 41/51 cases. Occasional estrus‐like behavior was observed postoperatively in 14/51 (27%) mares, but the behavior was mild and manageable in all cases. There was no age effect on outcome in all bilateral (p = .56) or elective only (p = .36) cases. In 37/41 (90%) elective cases, improvement was observed in the reason for presentation. Some response to altrenogest administration for behavior modification was observed preoperatively in 12/18 (67%) elective cases. Response to altrenogest was not associated with (p = .31) or able to predict a beneficial response to surgery (OR = 5.5; 95% CI = 0.38–78.57; p = .21). Conclusion Response to altrenogest in elective cases may not predict behavioral outcome with ovariectomy. Occasional estrus‐like behavior in mares postoperatively was not problematic for any owners. Bilateral ovariectomy is a viable treatment option for owners seeking to alleviate undesirable behavior in mares. Clinical significance This study should aid veterinarians and horse owners in case selection for bilateral ovariectomy.

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Section: Discussionmentioning

confidence: 73%

Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Outcome of bilateral equid laparoscopic ovariectomies

et al. 2021

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Using Estrous Behavior to Time Initiation of Oxytocin Administration to Prolong Luteal Function in Mares

Manning

Runcan

Moraes

et al. 2019

Journal of Equine Veterinary Science

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Laparoscopic Ovariectomy in Standing Mule Mares

Petrizzi

Straticò

Cuomo

et al. 2020

Journal of Equine Veterinary Science

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Mules are hybrids bred from the mating of a jack donkey and a horse mare, known for their strength and resistance and still used to work in agriculture. Although they have been for long considered sterile, evidence of estrus cycle has been demonstrated together with abnormal behavior related to ovarian activity. In this study, a bilateral standing laparoscopic ovariectomy technique using the LigaSure technology was applied in 10 mare mules for treating unwanted behavioral patterns. The technique was effectively performed on these animals avoiding the risk of general anesthesia, and the use of the LigaSure technology allowed good hemostasis and reduced surgical time. Owners declared to be satisfied with the resolution of the behavior.

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Laparoscopic Ovariectomy Diminishes Estrus-Associated Behavioral Problems in Mares

Cited by 10 publications

References 13 publications

Outcome of bilateral equid laparoscopic ovariectomies

Outcome of bilateral equid laparoscopic ovariectomies

Using Estrous Behavior to Time Initiation of Oxytocin Administration to Prolong Luteal Function in Mares

Laparoscopic Ovariectomy in Standing Mule Mares

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