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Tricuspid atresia in a foal.
Journal of the American Veterinary Medical Association
|April 1, 1978
Summary
A congenital cardiac anomaly in a foal, including pulmonic stenosis, led to a fatal outcome despite corrective surgery. Postmortem findings revealed complex congenital heart defects, highlighting the challenges in treating severe equine cardiac conditions.
Area of Science:
- Veterinary Cardiology
- Equine Congenital Heart Disease
Background:
- Congenital cardiac anomalies can significantly impact equine health and performance.
- Early diagnosis and intervention are crucial for managing suspected heart defects in foals.
Observation:
- A foal presented with a severe holosystolic murmur, cyanosis, and polycythemia, indicative of a significant cardiac issue.
- Diagnostic imaging and pressure recordings confirmed pulmonic stenosis.
Findings:
- Postmortem examination revealed complex congenital defects including tricuspid atresia, patent foramen ovale, ventricular septal defect, and severe pulmonic stenosis.
- The foal also exhibited eccentric left ventricular hypertrophy and a single coronary artery originating from the aorta.
Implications:
- This case underscores the complexity of congenital heart defects in horses.
- Understanding these anomalies is vital for improving diagnostic and surgical outcomes in veterinary cardiology.