High-Resolution Diagnostic Evaluation of the Upper Gastrointestinal Tract
Equine gastroscopy is the gold standard diagnostic tool for direct visualization of the esophagus, squamous mucosa, glandular stomach, and pyloric region. It remains the only definitive method for diagnosing Equine Gastric Ulcer Syndrome (EGUS), gastritis, hyperkeratosis, pyloric obstruction, polyps, and structural abnormalities.

Why Gastroscopy Matters
- Gastric ulcers are highly prevalent in horses, affecting up to 90% of performance horses.
- Clinical signs are often non-specific, making visual confirmation essential.
- Accurate diagnosis before treatment prevents unnecessary medication and improves therapeutic outcomes.
- Gastroscopy provides the most reliable assessment of treatment response and ulcer healing.
Indications for Gastroscopy
Clinical signs include:
- Decreased appetite or picky eating
- Weight loss or poor body condition
- Reduced performance or reluctance to work
- Mild, recurrent colic episodes
- Behavioral changes such as irritability or flank sensitivity
- Bruxism (teeth grinding), especially in younger horses
Veterinary indications:
- Suspicion of ESGD (Equine Squamous Gastric Disease) or EGGD (Equine Glandular Gastric Disease)
- Evaluation for pyloric outflow obstruction
- Monitoring response to treatment with omeprazole, sucralfate, or misoprostol
- Pre-purchase assessments when medically indicated
Pre-Gastroscopy Preparation
To ensure optimal visualization:
- 12–18 hours of fasting
- Withhold water 2–3 hours prior to the examination
- Remove bedding to prevent ingestion
- Initial gastric lavage if delayed emptying is suspected
Advantages of Our Gastroscopy Service
- High-definition, 3-meter endoscopy system designed specifically for equine patients
- Detailed interpretation using ESGD/EGGD scoring systems (0–4)
- High-quality imaging with complete photo and video documentation
- Veterinarians experienced in equine internal medicine and gastroenterology
- Safe, controlled sedation and attentive monitoring throughout the visit
Post-Gastroscopy Care
- Water may be offered after sedation wears off, followed by regular feed
- A tailored treatment plan is provided based on findings
Why Horse Owners Benefit
- Clear diagnosis of the underlying cause of poor performance or digestive discomfort
- Prevention of unnecessary medication costs
- Objective evaluation of treatment success and strategies to prevent recurrence
