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  • Author or Editor: Maria Payne x
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Objective—To determine signalment, physical examination and clinicopathologic abnormalities, outcome, and subsequent fertility of mares with periparturient hemorrhage (PPH) and identify factors associated with outcome (ie, survival vs death).

Design—Retrospective case series.

Animals—73 mares.

Procedures—Medical records were reviewed for information on age, breed, initial complaint, physical examination and clinicopathologic abnormalities, treatment, outcome, and subsequent fertility.

Results—Median age was 14.0 years (range, 5 to 24 years), and median number of foals produced prior to the diagnosis of PPH was 8 (range, 1 to 16). Ten (14%) mares had prepartum hemorrhage and 63 (86%) had postpartum hemorrhage. Treatment was aimed at restoring cardiovascular volume, enhancing coagulation, controlling pain, and reducing the effects of endotoxemia. Sixty-one (84%) mares survived and 12 (16%) died or were euthanized. Common complications included fever, leukopenia, retained fetal membranes, increased digital pulses, thrombophlebitis, and cardiac arrhythmias. Of the 53 surviving mares for which subsequent breeding information was available, 26 (49%) produced 1 or more foals after recovering from PPH.

Conclusions and Clinical Relevance—Results suggested that PPH can develop in mares of any age and parity. Treatment was associated with a good prognosis for survival and a reasonable prognosis for future fertility.

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in Journal of the American Veterinary Medical Association