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https://doi.org/ISSN 0303-5409

Overview of the Placental Pathology of Equine FetusesAborted due toNon-Infectious Causes

David Detelj ; Veterinarska praksa Vet5, Zagreb, Hrvatska
Dunja Vlahović ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Ivan-Conrado Šoštarić-Zuckermann ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Lidija Medven Zagradišnik orcid.org/0000-0001-6182-6015 ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Ivana Mihoković Buhin ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Branka Artuković ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Andrea Gudan Kurilj ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Marko Hohšteter ; BIOINSTITUT d.o.o. za usluge u zdravstvu i veterinarstvu, Čakovec
Iva Ciprić orcid.org/0009-0008-4609-5806 ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu
Doroteja Huber orcid.org/0000-0003-2360-2904 ; Zavod za veterinarsku patologiju, Veterinarski fakultet u Zagrebu *

* Dopisni autor.

Sažetak

Abortion in horse breeding results in significant economic losses, making it essential to establish an etiological
diagnosis in every case. Although abortions in mares are extensively studied in our area, multidisciplinary
research linking etiology with the pathological changes in abortion is rare. The aim of this study was to
investigate the lesions observed on the placenta in non-infectious abortions.
The study included all aborted fetuses submitted for necropsy from 2016 to 2022, where the placenta was
submitted with the fetus, and the cause of abortion was of non-infectious etiology. The cause of abortion was
determined on the basis of pathological examinations (gross necropsy and histopathology), while infectious
etiologies were excluded through additional molecular and microbiological testing.
The placenta was submitted for necropsy in 61.29% (N=35) of all aborted cases examined at the Department
of Veterinary Pathology. Non-infectious causes accounted for 12 cases (34.29%). The most frequent
non-infectious causes were placental insufficiency (3 cases, 8.57%), umbilical cord torsion (2 cases, 5.71%),
and twin pregnancy (2 cases, 5.71%). Gross changes were observed in seven cases (58.33%), most frequently
including twisted umbilical cords, accompanied by hemorrhages and necrosis, and placental hemorrhages
and congestion. Microscopic changes were present in eight cases (66.67%), where the most frequent were
placental congestion and hemorrhage.
The results of this study indicate that the most frequent non-infectious causes of abortion in mares were
placental insufficiency, twin pregnancy, and umbilical cord torsion, without consistent or specific gross and
microscopic lesions in the placenta. A thorough necropsy of the entire fetus, combined with ancillary testing
to exclude infectious etiologies, allows for a reliable determination of the cause of non-infectious abortions
in mares.

Ključne riječi

placenta; gross changes; histological lesions; noninfectious miscarriage; mare

Hrčak ID:

343376

URI

https://hrcak.srce.hr/343376

Datum izdavanja:

31.12.2025.

Podaci na drugim jezicima: hrvatski

Posjeta: 303 *