Factors affecting the prognosis for uterine torsion: the effect of treatment based on measurements of serum progesterone and estradiol concentrations after surgery.
Abstract: This is a retrospective study of uterine torsion (UT) in seven mares. In two cases, serum progesterone and estradiol concentrations were also investigated. The mare and foal/fetus survival rate was 57% (4/7). Four cases presented with clockwise torsion, and two cases presented with counterclockwise torsion. The direction was undetermined in one case. The degree of torsion varied. Correction of torsion was performed by ventral midline celiotomy in all cases. In the two cases with measured hormone levels, elevated levels of P were decreased through medication. All mares discharged from the hospital with a live fetus were able to carry a live fetus. Early diagnosis and treatment of UT increases the possibility of helping mares and foals in cases with acute UT.
Publication Date: 2017-12-16 PubMed ID: 29270075PubMed Central: PMC5735315DOI: 10.1294/jes.28.163Google Scholar: Lookup
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Summary
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The study focuses on evaluating factors that influence the prognosis for uterine torsion in mares, considering the role of serum progesterone and estradiol concentrations in animal survival rates post-surgery.
Research Objectives and Methodology
- Undertaking a retrospective analysis, this research explored seven incidents of uterine torsion (UT) in mares.
- In two cases, the investigation was extended to study the variant serum levels of two reproductive hormones; progesterone and estradiol.
- The corrective procedure for the torsion, namely ventral midline celiotomy, was uniformly executed across all subjects.
- All subjects were monitored post-surgery, with the survival rate and eventual fate of the mares and foetuses recorded.
Key Findings
- The survival rate for the mares and their offspring was found to be 57%, i.e., successful outcomes were observed in 4 out of the 7 instances.
- Of the total, 4 UT cases were determined as clockwise torsion, while 2 were categorized as counterclockwise. There was one case where the torsion’s direction was undetermined.
- The degree (or severity) of torsion appeared to vary across the subjects.
- In the two cases where serum progesterone (P) and estradiol concentrations were studied, it was noted that cases showing elevated progesterone levels were managed and brought down through appropriate medication.
- It was also found that all mares that left the hospital with a live foetus were able to carry the foetus to term. This suggests a success rate of 100% for treated mares carrying a live foetus post-surgery.
Overall implications
- The importance of early diagnosis and timely intervention in UT cases is emphasised, as these actions significantly increase the chances of survival for both mare and foetus in cases of acute uterine torsion.
Thus, the study underscores the critical role of hormone level tracking and careful surgical intervention in improving prognosis in cases of uterine torsion, while underscoring the need for prompt detection and treatments.
Cite This Article
APA
Satoh M, Higuchi T, Inoue S, Gotoh T, Murase H, Nambo Y.
(2017).
Factors affecting the prognosis for uterine torsion: the effect of treatment based on measurements of serum progesterone and estradiol concentrations after surgery.
J Equine Sci, 28(4), 163-167.
https://doi.org/10.1294/jes.28.163 Publication
Researcher Affiliations
- Hokkaido South Agricultural Mutual Aid Association Mitsuishi Animal Medical Center, Hokkaido 059-3105, Japan.
- Hokkaido South Agricultural Mutual Aid Association Mitsuishi Animal Medical Center, Hokkaido 059-3105, Japan.
- Hokkaido South Agricultural Mutual Aid Association Mitsuishi Animal Medical Center, Hokkaido 059-3105, Japan.
- Hokkaido South Agricultural Mutual Aid Association Mitsuishi Animal Medical Center, Hokkaido 059-3105, Japan.
- Equine Science Division, Hidaka Training and Research Center, Japan Racing Association, Hokkaido 057-0171, Japan.
- Department of Clinical Veterinary Science Obihiro University of Agriculture and Veterinary Medicine, Hokkaido 080-8555, Japan.
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