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Canadian journal of veterinary research = Revue canadienne de recherche veterinaire2004; 68(1); 27-32;

In situ coagulation and transection of the ovarian pedicle: an alternative to laparoscopic ovariectomy in juvenile horses.

Abstract: The feasibility of leaving the ovaries within the peritoneal cavity after laparoscopic coagulation and transection of the ovarian pedicle was assessed in the juvenile horse. Elective ovariectomy was performed on 10 quarter horses, aged 4 to 5 mo, with the fillies in a Trendelenburg position. The mesovarium was isolated, and multiple coagulation and transection cycles were performed until all ovarian attachments had been severed. The ovaries were dropped within the abdomen, and hemostasis of the transected mesovarium was evaluated before closure. The mean surgical time was 33 min (range, 23 to 48 min). Ten weeks after surgery the fillies were humanely euthanized. At postmortem examination, the ovary location within the abdomen was noted. In 1 horse, there was an abdominal adhesion; viscera had been punctured during insufflation. Of the 20 ovaries, 4 were free-floating within the abdominal cavity; the other 16 were enveloped in the free portion of the greater omentum in the cranioventral abdomen. Histologic examination of the ovaries was performed to assess follicle cell viability. In both the free-floating and the attached ovaries, the deep blood vessels and all examined follicular structures were necrotic and partially mineralized. Laparoscopic electrosurgical transection of the ovarian pedicle without removal of the ovaries should be considered an alternative to other ovariectomy techniques that may be performed in young female horses.
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Publication Date: 2004-02-26 PubMed ID: 14979432PubMed Central: PMC1142126
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  • Journal Article
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  • Non-U.S. Gov't

Summary

This research summary has been generated with artificial intelligence and may contain errors and omissions. Refer to the original study to confirm details provided. Submit correction.

This study details an alternative method of performing ovariectomy (ovary removal) in young horses. Instead of removing the ovary entirely, researchers tested the viability of leaving the ovary in the abdominal cavity post-operatively.

Research method

  • The study was performed on 10 juvenile quarter horses, aged 4 to 5 months, that were put in a Trendelenburg position (a position where the body is tilted, with the feet higher than the head).
  • The mesovarium, the portion of the broad ligament of the uterus to which the ovary is attached, was isolated, and the ovarian pedicle (the structure containing the ovarian artery and vein) was coagulated and transected, severing the ovarian attachments.
  • Instead of removing the ovaries, they were let drop within the abdomen and the area was evaluated for hemostasis (the stopping of blood flow) before closing the surgical site.
  • The mean surgical time was 33 minutes, with a range of 23 to 48 minutes.

Post operative findings

  • At 10 weeks post surgery, the horses were euthanized and a post-mortem examination was carried out, during which the location of the ovaries within the abdomen was noted.
  • In one horse, the viscera (internal organs) had been punctured during insufflation (inflation of the abdomen with gas for the surgery), leading to an abdominal adhesion.
  • Of the 20 ovaries, 4 were found free-floating within the abdominal cavity, while the remaining 16 were enveloped in the free portion of the greater omentum (a fold of the peritoneum), located in the cranioventral (near the head and front) region of the abdomen.
  • Upon histologic examination of the ovaries, all of the deep blood vessels and follicular structures in both the free-floating and attached ovaries were discovered to be necrotic (dead) and partially mineralized (hardened).

Summary and conclusion

The authors concluded that laparoscopic electrosurgical transection of the ovarian pedicle, while leaving the ovaries within the abdomen, could be considered as an alternative to other ovariectomy techniques for young female horses.
This technique may reduce the risk of complications associated with removal of the ovary and could provide a quicker operational time. However, further studies may be needed to assess the long-term impact and any potential health risks associated with leaving necrotic and mineralized tissue within the body.

Cite This Article

APA
Shoemaker RW, Read EK, Duke T, Wilson DG. (2004). In situ coagulation and transection of the ovarian pedicle: an alternative to laparoscopic ovariectomy in juvenile horses. Can J Vet Res, 68(1), 27-32.

Publication

Canadian journal of veterinary research = Revue canadienne de recherche veterinaire
ISSN: 0830-9000
NlmUniqueID: 8607793
Country: Canada
Language: English
Volume: 68
Issue: 1
Pages: 27-32

Researcher Affiliations

Shoemaker, Ryan W
  • Department of Large Animal Clinical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan. shoemaker@skyway.usask.ca
Read, Emma K
    Duke, Tanya
      Wilson, David G

        MeSH Terms

        • Animals
        • Female
        • Horses / surgery
        • Laparoscopy / methods
        • Laparoscopy / veterinary
        • Laser Coagulation / methods
        • Laser Coagulation / veterinary
        • Ovariectomy / methods
        • Ovariectomy / veterinary
        • Ovary / pathology
        • Ovary / surgery

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        Citations

        This article has been cited 5 times.
        1. Ko BH, Park DG, Lee WJ. Postoperative Observation of Spaying with the Silicon Ring on the Ovaries in Heifers: A Retrospective Study in 28 Cases. Vet Sci 2022 Nov 21;9(11).
          doi: 10.3390/vetsci9110643pubmed: 36423092google scholar: lookup
        2. Straticò P, Guerri G, Palozzo A, Varasano V, Petrizzi L. Current Use of Equine Laparoscopy in Urogenital Disorders: A Scoping Review of the Literature from 2000 to 2021. Vet Sci 2022 Jan 22;9(2).
          doi: 10.3390/vetsci9020041pubmed: 35202295google scholar: lookup
        3. Devick IF, Hendrickson DA. Effects of Leaving Amputated Ovaries Intra-Abdominally during Elective Bilateral Standing Laparoscopic Ovariectomy in Equids. Animals (Basel) 2021 Jan 18;11(1).
          doi: 10.3390/ani11010232pubmed: 33477730google scholar: lookup
        4. Hendrickson DA. A review of equine laparoscopy. ISRN Vet Sci 2012;2012:492650.
          doi: 10.5402/2012/492650pubmed: 23762585google scholar: lookup
        5. Peiró JR, Nogueira GM, Nogueira GP, Perri SH, Cardoso D. Ovariectomy by left flank approach in prepubertal Nelore (Bos indicus) heifers. Can J Vet Res 2009 Jul;73(3):237-40.
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