Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch

A 3-year-old female rough coated collie was presented at day 69 (D69) after the first mating. She was mated on 2 consecutive days based on ovulation timing by the referring veterinarian. At day 30 post breeding, a single, live embryo was seen on ultrasound by this veterinarian. On D69, the bitch was...

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Main Authors: Annemarie Spruijt, Lucinda van Stee, Karin Wolthers, Jeffrey de Gier
Format: Article
Language:English
Published: Frontiers Media S.A. 2022-06-01
Series:Frontiers in Veterinary Science
Subjects:
Online Access:https://www.frontiersin.org/articles/10.3389/fvets.2022.888807/full
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author Annemarie Spruijt
Lucinda van Stee
Karin Wolthers
Jeffrey de Gier
author_facet Annemarie Spruijt
Lucinda van Stee
Karin Wolthers
Jeffrey de Gier
author_sort Annemarie Spruijt
collection DOAJ
description A 3-year-old female rough coated collie was presented at day 69 (D69) after the first mating. She was mated on 2 consecutive days based on ovulation timing by the referring veterinarian. At day 30 post breeding, a single, live embryo was seen on ultrasound by this veterinarian. On D69, the bitch was presented to us because she lacked signs of impending parturition such as vulvar discharge or nest building behavior. On general examination, the bitch appeared clinically healthy and no prodromi were present. On abdominal palpation a small, firm structure and a slightly enlarged uterus were detected. There was no vulvar discharge. Using vaginoscopy we could not see any signs of cervical dilatation. Additionally, ultrasonography revealed the presence of a collapsed fetus in the uterus with a moderate amount of echogenic fluid surrounding it and the plasma progesterone concentration was 2.6 ng/ml. A parturition induction protocol was initiated: a progesterone receptor antagonist was administered, followed by PGF2α to induce cervical relaxation and uterine contractions. The fetus was expelled 3 days later, without noticeable damage to the reproductive tract of the dam. The bitch subsequently delivered two more litters without complications. To our knowledge this is the first clinical report that demonstrates a successful non-surgical treatment to expel a mummified fetus after prolonged gestation. The pharmacological treatment did not affect the future fertility of the breeding dog, which is an important outcome for breeders.
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spelling doaj.art-29f6f1f851ff40ecaae276a5b01ac0612022-12-22T00:55:28ZengFrontiers Media S.A.Frontiers in Veterinary Science2297-17692022-06-01910.3389/fvets.2022.888807888807Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a BitchAnnemarie SpruijtLucinda van SteeKarin WolthersJeffrey de GierA 3-year-old female rough coated collie was presented at day 69 (D69) after the first mating. She was mated on 2 consecutive days based on ovulation timing by the referring veterinarian. At day 30 post breeding, a single, live embryo was seen on ultrasound by this veterinarian. On D69, the bitch was presented to us because she lacked signs of impending parturition such as vulvar discharge or nest building behavior. On general examination, the bitch appeared clinically healthy and no prodromi were present. On abdominal palpation a small, firm structure and a slightly enlarged uterus were detected. There was no vulvar discharge. Using vaginoscopy we could not see any signs of cervical dilatation. Additionally, ultrasonography revealed the presence of a collapsed fetus in the uterus with a moderate amount of echogenic fluid surrounding it and the plasma progesterone concentration was 2.6 ng/ml. A parturition induction protocol was initiated: a progesterone receptor antagonist was administered, followed by PGF2α to induce cervical relaxation and uterine contractions. The fetus was expelled 3 days later, without noticeable damage to the reproductive tract of the dam. The bitch subsequently delivered two more litters without complications. To our knowledge this is the first clinical report that demonstrates a successful non-surgical treatment to expel a mummified fetus after prolonged gestation. The pharmacological treatment did not affect the future fertility of the breeding dog, which is an important outcome for breeders.https://www.frontiersin.org/articles/10.3389/fvets.2022.888807/fullaglépristonecaninefetal deathmummificationparturition inductionPGF2α
spellingShingle Annemarie Spruijt
Lucinda van Stee
Karin Wolthers
Jeffrey de Gier
Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
Frontiers in Veterinary Science
aglépristone
canine
fetal death
mummification
parturition induction
PGF2α
title Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
title_full Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
title_fullStr Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
title_full_unstemmed Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
title_short Case Report: Medical Management of Prolonged Gestation of a Mummified Fetus in a Bitch
title_sort case report medical management of prolonged gestation of a mummified fetus in a bitch
topic aglépristone
canine
fetal death
mummification
parturition induction
PGF2α
url https://www.frontiersin.org/articles/10.3389/fvets.2022.888807/full
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