Related Experiment Video
Updated: May 12, 2026
02:47
Exercise Test for Evaluation of the Functional Efficacy of the Pig Cardiovascular System
Published on: May 12, 2023
Diagnostic exercise: poor performance in a racehorse.
F Giannitti1, R Petrov2, J Parker2
1California Animal Health and Food Safety (CAHFS) Laboratory System, School of Veterinary Medicine, University of California, Davis, CA, USA fgiannitti@ucdavis.edu.
Veterinary Pathology
|April 24, 2013
Summary
This study details a case of a Thoroughbred gelding with prolonged poor performance and fever, ultimately diagnosed with severe liver disease. Diagnostic findings highlight significant hepatomegaly and fibrosis, underscoring the challenges in equine liver pathology.
Area of Science:
- Veterinary Medicine
- Equine Internal Medicine
- Hepatology
Background:
- A 9-year-old Thoroughbred gelding exhibited a 97-day history of poor performance and intermittent fever.
- Clinicopathologic findings included elevated liver enzymes (γ-glutamyltransferase, alkaline phosphatase), mild hyperbilirubinemia, and leukocytosis with neutrophilia and lymphopenia.
Observation:
- Abdominal ultrasound revealed hepatomegaly with hyperechoic hepatic parenchyma and biliary distention.
- Pathological examination showed marked hepatomegaly (3.6% of body weight), firm consistency, diffuse enhanced reticular pattern, severe portal bridging, sinusoidal fibrosis, oval cell/bile duct hyperplasia, and bile stasis.
Findings:
- The case presents a complex equine liver disease with significant histopathological changes.
- Diagnostic workup involved clinicopathologic analysis and abdominal ultrasonography to identify the extent of hepatic and biliary abnormalities.
Implications:
- This case highlights the diagnostic challenges and pathological features of severe equine liver disease.
- Understanding these findings aids in the differential diagnosis and management of similar presentations in horses.
Related Concept Videos
01:26Exercise Stress Test
Introduction
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
Exercise stress testing, commonly known as a treadmill test, is a noninvasive procedure used to evaluate cardiovascular function and diagnose heart conditions.
Definition
An exercise stress test measures the heart's response to exertion using a treadmill or stationary bicycle. Chest electrodes record the heart's electrical activity through an ECG, and blood pressure is monitored regularly.
Purposes
01:30Dysrhythmias V: Evaluating Dysrhythmias
Dysrhythmias, also known as arrhythmias, are disturbances in the heart's rhythm that range from benign to life-threatening. A thorough evaluation is crucial for appropriate management and involves a comprehensive medical history, physical examination, and various diagnostic tests.Medical HistorySymptoms: Collect detailed information on palpitations, dizziness, syncope, chest pain, and fatigue. Note their onset, frequency, and triggers.Previous Cardiac Issues: Document any history of heart...