Uterine torsion in a Quarter Horse mare in 2 nonconsecutive pregnancies

Luisa  Correa-Garza; Louise  Southwood; Michelle Abraham; Tamara Dobbie

doi:10.58292/CT.v18.14294

Luisa Correa-Garza Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, USA
Louise Southwood Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, USA
Michelle Abraham Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, USA
Tamara Dobbie Department of Clinical Studies, New Bolton Center, School of Veterinary Medicine, University of Pennsylvania, Kennett Square, PA, USA

DOI: https://doi.org/10.58292/CT.v18.14294

Keywords: Peripartum mare, uterine torsion, uterine tear, oocyte recovery, embryos

Abstract

Uterine torsion is a relatively rare but serious periparturient condition that constitutes a reproductive emergency for both mare and foal. Although recurrence within the same pregnancy has been documented, recurrence across separate pregnancies remains unreported. We describe a mare that experienced clockwise uterine torsions during 2 pregnancies, on days 256 and 349 of pregnancy, respectively. Both pregnancies resulted in the delivery of live foals; however, the second uterine torsion led to an inoperable uterine tear necessitating euthanasia; oocytes were successfully harvested at postmortem resulting in 4 embryos via intracytoplasmic sperm injection.

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