ABSTRACT OF THE WEEK

The Veterinary Clinics of North America. Equine practice
Volume 37 | Issue 2 (August 2021)

Managing Reproduction Emergencies in the Field: Part 2: Parturient and Periparturient Conditions.

Vet Clin North Am Equine Pract. August 2021;37(2):367-405.

Kristina G Lu¹, Kim A Sprayberry²

¹ Hagyard Equine Medical Institute, 4250 Iron Works Pike, Lexington, KY 40511, USA.; ² Department of Animal Sciences, Cal Poly University San Luis Obispo, 1 Grand Avenue, San Luis Obispo, CA 93407, USA. Electronic address: kspraybe@calpoly.edu.

Abstract

Selected conditions affecting broodmares are discussed, including arterial rupture, dystocia, foal support with ex utero intrapartum treatment, uterine prolapse, postpartum colic, the metritis/sepsis/systemic inflammatory response syndrome complex, and retained fetal membranes. Postpartum colic beyond third-stage labor contractions should prompt comprehensive evaluation for direct injuries to the reproductive tract or indirect injury of the intestinal tract. Mares with perforation or rupture of the uterus are typically recognized 1 to 3 days after foaling, with depression, fever, and leukopenia; laminitis and progression to founder can be fulminant. The same concerns are relevant in mares with retention of fetal membranes.

Keywords

Dystocia; Hemorrhage; Metritis; Prolapse; Retained membranes; SIRS; Shock; Uterine;

Article Tools:

Medline

Email to me

Archives Highlights:

Cryptorchidism in dogs and cats presented for elective gonadectomy: A descriptive cohort study of 306 animals treated between 2018 and 2023.
5,476 dogs and 11,559 cats were presented to the same facility for elective surgical castration, suggesting a cryptorchid incidence of 3.21 % for dogs and 1.12 % for cats. Cryptorchid testes were more commonly observed in the inguinal area than in the abdomen, and were more frequently located unilaterally on the right side in both dogs and cats.

Aseptic protocol breaches are common among veterinary students scrubbing, gowning, and gloving into surgery.
At least 1 aseptic protocol breach (APB) was noted in 46.3% of the 96 procedures observed. The most common mistakes noted were contact of the sterile towel onto nonsterile surfaces (17.7%), contact of the gown with nonsterile surfaces (17.7%), touching sterile objects with bare hands (12.5%), and improper scrubbing technique (17.4%).

Trust in veterinarians and association with vaccine information sources and vaccination status among dog and cat owners.
62.9% of dog and 61.2% of cat owners were classified as trusting their veterinarians. On average, dog owners consulted 2.50 sources about vaccine information; cat owners consulted 2.27 sources. Veterinarians were the most common primary sources of information for 85.4% of dog owners with high levels of trust, but only 62.6% of dog owners with lower levels. This was the case for 83.8% and 56.3% of cat owners.

"My Bitch Is Empty!" An Overview of the Reasons for Pregnancy Loss in Dogs.
If embryonic death occurs before day 35 of gestation, the embryo is absorbed. Fetal death in the second half of gestation leads to abortion or fetal emphysema, maceration, or mummification.

Efficacy, safety and interval from end of treatment to estrus in cats treated with an ultra-low dose megestrol acetate protocol for suppression of reproductive activity.
Twenty-eight queens were treated orally with 11.5 µg/kg/day of megestrol acetate (MA) for one to six months. MA suppressed reproductive function effectively in 27/28 queens. Transient mammary and uterine hyperplasia were detected in four (14 %) and three (11 %) queens, respectively, treated for more than four months, without associated clinical signs. Significant but reversible weight gain was observed in 85 % of the animals. The resumption of cyclicity occurred on average 6 weeks after the end of treatment but was influenced by the duration of treatment and seasonality.