Gayle Leith

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Courses

Scholarly Contributions

Chapters

• Leith, G., & Allen, A. (1995). Ultrasonography for Reproductive Management in the Mare.. In Veterinary Diagnostic Ultrasound T.G. Nyland & J.S. Mattoon(pp 305-320). W.B. Saunders.

Journals/Publications

• Leith, G., Hallam, L., & Englar, R. (2023).  "Teaching Tip: Design and Implementation of a Safe Equine Radiation-Free Radiographic Simulator for Veterinary Skills Training in the Pre-clinical Curriculum." . Journal of Veterinary Medical Education (2023): Journal of Veterinary Medical Education, 2023, Online Advance Access Article https://jvme.utpjournals.press/doi/pdf/10.3138/jvme-2023-0080(EISSN: 1943-7218), 9. doi:https://doi.org/10.3138/jvme-2023-0080
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  This teaching tip describes the development of a novel equine radiographic simulator for skills training in the veterinary curriculum. The model allows learners to handle imaging equipment safely and without radiation exposure as they develop proficiency positioning radiographic plates and placing directional markers. Learners can also test their understanding of radiographic positioning in reverse: if given a radiograph, they can be asked to describe how the x-ray generator was positioned to obtain the diagnostic image. Future iterations will investigate the simulator's efficacy with respect to learning outcomes when the model is paired with an assessment rubric as part of an objective standardized clinical examination.
• Higgins, J. C., Leith, G. S., Pappagianis, D., & Pusterla, N. (2006). Treatment of Coccidioides immitis pneumonia in two horses with fluconazole. The Veterinary record, 159(11), 349-51.
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  Pulmonary coccidioidomycosis in horses can often lead to severe systemic disease and its treatment has previously been expensive and has carried a poor prognosis. This paper describes the successful treatment of two horses with pulmonary coccidioidomycosis with a fluconazole product produced by a compounding pharmacy.
• Higgins, J. C., Leith, G. S., Voss, E. D., & Pappagianis, D. (2005). Seroprevalence of antibodies against Coccidioides immitis in healthy horses. Journal of the American Veterinary Medical Association, 226(11), 1888-92.
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  To determine the seroprevalence of antibodies against Coccidioides immitis in healthy horses residing in an area in which the organism is endemic.
• Brooks, M., Leith, G. S., Allen, A. K., Woods, P. R., Benson, R. E., & Dodds, W. J. (1991). Bleeding disorder (von Willebrand disease) in a quarter horse. Journal of the American Veterinary Medical Association, 198(1), 114-6.
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  Bleeding diathesis in a Quarter Horse filly was caused by von Willebrand disease. Hemorrhage occurred mainly from mucosal surfaces and after trauma. Quantitative and qualitative measurements of plasma von Willebrand factor (vWF) documented a specific deficiency of vWF high molecular weight multimers, and concurrently greater than expected deficiency of vWF activity relative to vWF concentration. These findings are characteristic of type-II von Willebrand disease in human beings. Application of vWF assays used in human and small animal medicine now permits evaluation of vWF and diagnosis of von Willebrand disease in horses with bleeding disorders.
• Ginther, O. J., Garcia, M. C., Bergfelt, D. R., Leith, G. S., & Scraba, S. T. (1985). Embryonic loss in mares: Pregnancy rate, length of interovulatory intervals, and progesterone concentrations associated with loss during days 11 to 15. Theriogenology, 24(4), 409-17.
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  Pregnancy rates, length of interovulatory intervals, and progesterone concentrations were examined in mares which had ultrasonically detected collections of fluid in the uterine lumen and in mares which lost the embryonic vesicle during Days 11 to 15 and did not become pseudopregnant. In mares with embryonic loss, the loss rate for mares with re-established pregnancies (9 18 ) was greater (P
• Leith, G. S., & Ginther, O. J. (1985). Mobility of the conceptus and uterine contractions in the mare. Theriogenology, 24(6), 701-711. doi:10.1016/0093-691x(85)90169-4
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  Location of the embryonic vesicle within the uterus of mares was recorded every. five minutes for two consecutive hours (25 location determinations per trial) in three experiments. In Experiment 1 (n=7), the number of location changes among nine uterine segments (three body segments and three segments for each horn) was greater (P
• Leith, G. S., & Ginther, O. J. (1984). Characterization of intrauterine mobility of the early equine conceptus. Theriogenology, 22(4), 401-8.
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  Intrauterine mobility patterns of the embryonic vesicle were characterized on Days 9 to 17 after ovulation in pony mares using real-time ultrasonography (n=5 or 7 mares per day). The location of the vesicle was determined by dividing the uterus into right horn, left horn, and body. Each uterine horn was further divided into three approximately equal portions (cranial third, middle third, caudal third), yielding seven segments (body plus three portions of each horn). Location of the vesicle within the uterus was recorded every five minutes for two consecutive hours (25 location determinations per trial). The number of times the vesicle was found in the uterine body versus one of the uterine horns was greater for the body on Day 9 (15.2 vs 9.8; not significant) and Day 10 (17.3 vs 7.7 P

Presentations

• Leith, G. (2021, January - April). Equine Basic Medicine Course. Deliver Ten60-minute prerecorded lectures with Two 60 minutelive real-time Question/Answer Sessions. China: PetcareAbc (Xi'an) Enterprise Management Co., Ltd. 2501-A09, 25th Floor, Kaiwei Building, No. 2 Guangtai Road, High-tech Zone, Xi'an, Shaanxi, China.
• Leith, G. (2018, June). The Single Embryo, Embryo Mobility, and Embryo Uterine Interactions. Invited solo presenter. Beijing, China: Beijing-College of Veterinary Medicine, China Agricultural University.
• Leith, G. (2012, December). How to become a Diplomate in American Board of Veterinary Practitioners via the Alternative Pathway. American Association of Equine Practitioners. Anaheim, CA: American Association of Equine Practitioners.
• Leith, G. (2008, January). Equine Reproduction. American Shire Horse Association annual meeting. Mesa, AZ: American Shire Horse Association annual meeting.
• Leith, G. (2009, December). Start-Up Problems in an Equine Relief Program on the Reservation: Getting the Kinks Out. American Association of Equine Practitioners. Las Vegas, NV: American Association of Equine Practitioners.
• Leith, G. (2008, December). Buying into a Practice. American Association of Equine Practitioners. San Diego, CA: American Association of Equine Practitioners.
• Leith, G. (2007, December). Buying into a Practice. American Association of Equine Practitioners. Orlando, FL: American Association of Equine Practitioners.