Posted on Thursday, September 08, 2005 - 08:44 pm:
On another board, the following was asked:
"For the first time (for me anyhow!), a client's mare has come up with a "uterine body pregnancy" The vet said that it is was still early when he saw it (15 days) and it *should* migrate to the right or the left horn and there is only a small chance that it will remain in the uterine body in which case it will not be a viable pregnancy and it will die off
He comes again tomorrow to check her so REALLY crossing my fingers that it has migrated already!
Has anyone else experienced this and what was the final outcome?"
Can anyone help us please by explaining about "uterine body" pregnancies?
Posted on Thursday, September 08, 2005 - 10:58 pm:
The equine embryo is mobile within the uterus until around 16 days post-fertilization, at which time it becomes fixed generally just within one of the uterine horns at the corpus-cornual junction. I would not be surprised to see a 15-day embryo still in the uterine body and would not be concerned by it. If it was still located in the uterine body ater the stage when fixation is anticipated (~16 days) I would have concerns, as uterine body pregnancies rarely go to term in the equine. I would monitor with a repeat ultrasound a few days later (~18-20 days) and take appropriate action based upon the findings then. That action may include use of prostaglandin to destroy the pregnancy and allow rebreeding, but that would depend upon other factors (e.g. availability of semen).
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