Atrial Premature Complexes and Atrial Tachycardia Basic Information Definition • Atrial premature complex (APC): A premature depolarization that originates from the atrial myocardium, resulting in a P′ wave on the…
Potomac Horse Fever Basic Information Definition Colitis or diarrhea caused by Neorickettsia risticii Epidemiology Geography and Seasonality • Originally reported in the Potomac River Valley. • Cases have now been…
Hemospermia Basic Information Definition • The presence of blood (erythrocytes) in the ejaculate, either macroscopic (as evident on gross examination of red-tinged semen) or microscopic (occult hemospermia) • Causes infertility…
Sperm Abnormalities Azoospermia Basic Information Definition A complete absence of spermatozoa in the ejaculate Epidemiology Species, Age, Sex Affects stallions of various ages depending on cause Geography and Seasonality Spermiostasis…
Megaesophagus Basic Information Definition Chronic dilation (ectasia) and atony of the body of the esophagus Synonym(s) Esophageal ectasia Epidemiology Species, Age, Sex • Congenital megaesophagus is seen in foals and…
Pancreatitis, Acute Basic Information Definition Acute inflammation of the pancreas Epidemiology Species, Age, Sex All ages but more likely in older horses Clinical Presentation History, Chief Complaint The clinical signs…
Venous Oxygen Saturation/Venous Oxygen Tension Basic Information Definition Venous oxygen saturation and venous oxygen tension are used as a reflection of tissue oxygenation to identify occult tissue oxygen debt. Mixed…
Sinusitis, Secondary Basic Information Definition Secondary sinusitis is an inflammatory disease process localized to the paranasal sinus system in response to a variety of different primary pathologies, including: • Dental…
Renal Tubular Acidosis Basic Information Definition Renal tubular acidosis (RTA) is a group of disorders affecting the renal tubular cells that result in hyperchloremic metabolic acidosis with a normal anion…
Embryo Transfer Collection Basic Information Synonym(s) Embryo transplantation Overview and Goal(s) • Embryo transfer (ET) consists of transferring an embryo collected from a donor mare to a recipient mare (Box…
