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Ovarian torsion as a cause of colic in a neonatal foal.

Abstract: A 1-week-old Morgan filly was evaluated because of acute signs of abdominal pain of 7 hours' duration. On admission, physical examination findings were unremarkable; however, radiography of the abdomen revealed slight distention of the small intestine. Signs of abdominal discomfort were detected during several hours of observation. Abnormalities were not evident during gastroscopic evaluation. Therefore, exploratory laparotomy was performed. The only abnormal finding was infarction of the left ovary secondary to a 720 degrees torsion of the mesovarium. The vascular pedicle was ligated and the ovary was removed. Recovery from anesthesia and surgery was satisfactory, and the foal was discharged from the hospital 5 days after surgery. Two years later, it appeared to be clinically normal. Review of the recent veterinary literature failed to find reports of ovarian torsion as a cause of signs of abdominal pain in horses. Ovarian torsion should be considered as a differential diagnosis in fillies with acute signs of abdominal pain, especially when laparotomy fails to reveal abnormalities associated with the gastrointestinal tract.
Publication Date: 1998-11-26 PubMed ID: 9828943
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Summary

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The research article describes a case wherein a severely painful abdominal condition – ovarian torsion – was diagnosed and successfully treated in a week-old Morgan filly, a rare instance in veterinary science. The filly demonstrated normality two years after the necessary surgical intervention.

Introduction and Symptoms

  • The case study concerns a one-week-old Morgan filly (a young female horse) suffering from sudden severe abdominal pain or colic. The pain episodes had continued for seven hours before the foal was brought in for veterinary evaluation.
  • While the initial physical examination showed no significant abnormalities, a radiographic examination of the abdomen showed a slight swelling of the small intestine. This symptom manifested despite no apparent disturbances in the filly’s gastroscopic indicators.
  • The foal was held under observation for several more hours as it exhibited continuous discomfort in the abdominal area.

Diagnosis and Treatment

  • Considering the absence of clear anomalies from the gastroscopic evaluation and the persistence of abdominal pain, the team decided to perform an exploratory laparotomy (a surgical examination of the abdominal cavity).
  • The only palpable abnormality discovered during the laparotomy was the infarction (tissue death due to lack of blood supply) of the left ovary. The cause was traced to a 720 degrees torsion (twisting) of the mesovarium – the suspensory ligament of the ovary.
  • The ovary was surgically removed after ligation of the vascular pedicle (the connective blood vessels).
  • The filly showed satisfactory recovery from the surgery and anesthesia and was discharged from the hospital five days after the surgical intervention.

Follow-up and Conclusion

  • Two years following the surgery, the filly exhibited no abnormal clinical signs, demonstrating a successful treatment.
  • The article reports an apparent lack of veterinary literature on ovarian torsion as a cause of colic in horses, marking this case as quite unique.
  • In conclusion, the study posits that fairly rare conditions like ovarian torsion should not be dismissed when diagnosing sudden abdominal discomfort in young female horses, particularly when there are no clear abnormalities from gastroscopic evaluations and initial physical examinations.

Cite This Article

APA
Valk N, Davis EW, Blackford JT. (1998). Ovarian torsion as a cause of colic in a neonatal foal. J Am Vet Med Assoc, 213(10), 1454-1456.

Publication

ISSN: 0003-1488
NlmUniqueID: 7503067
Country: United States
Language: English
Volume: 213
Issue: 10
Pages: 1454-1456

Researcher Affiliations

Valk, N
  • Department of Large Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901, USA.
Davis, E W
    Blackford, J T

      MeSH Terms

      • Animals
      • Animals, Newborn
      • Colic / etiology
      • Colic / surgery
      • Colic / veterinary
      • Diagnosis, Differential
      • Female
      • Horse Diseases / etiology
      • Horse Diseases / surgery
      • Horses
      • Infarction / etiology
      • Infarction / surgery
      • Infarction / veterinary
      • Ovarian Diseases / complications
      • Ovarian Diseases / surgery
      • Ovarian Diseases / veterinary
      • Ovariectomy / veterinary
      • Ovary / blood supply
      • Ovary / pathology
      • Torsion Abnormality / complications
      • Torsion Abnormality / surgery
      • Torsion Abnormality / veterinary

      Citations

      This article has been cited 3 times.
      1. Vetere A, Gavezzoli M, Bel LV, Di Lecce R, Fumeo M, Bonazzi M, Di Ianni F. Partial unilateral ovarian torsion in a red-eared slider turtle (Trachemys scripta elegans). Front Vet Sci 2025;12:1524568.
        doi: 10.3389/fvets.2025.1524568pubmed: 39974156google scholar: lookup
      2. Noviello E, Russo M, Rubino P, De Felice D, Spada S. Ovarian Torsion in a Pet Rabbit (Oryctolagus cuniculus): A Case Report. Animals (Basel) 2024 Aug 26;14(17).
        doi: 10.3390/ani14172475pubmed: 39272263google scholar: lookup
      3. Shirakata C, Kondo H. The first report of ovarian torsion causing intracoelomic hemorrhage and subsequent hemorrhagic shock in a captive Humboldt penguin (Spheniscus humboldti). J Vet Med Sci 2024 Jun 19;86(6):708-711.
        doi: 10.1292/jvms.23-0501pubmed: 38719569google scholar: lookup