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Related Experiment Videos

Endocardial fibroelastosis in a dog

M H Larsson1, M R Baccaro, L Pereira

  • 1Faculdade de Medicina Veterinária e Zootecnia, Universidade de Säo Paulo, Brazil.

The Journal of Small Animal Practice
|April 1, 1997
PubMed
Summary
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Endocardial fibroelastosis, a rare congenital heart defect in dogs, caused severe heart failure in a young Fila Brasileiro. The condition involved abnormal endocardial thickening without inflammation, leading to fatal cardiac complications.

Area of Science:

  • Veterinary Cardiology
  • Congenital Heart Disease
  • Canine Pathology

Background:

  • Endocardial fibroelastosis (EFE) is a rare congenital cardiac anomaly.
  • It can lead to left-sided congestive heart failure in affected animals.
  • This case highlights EFE in a Fila Brasileiro puppy.

Observation:

  • A three-month-old Fila Brasileiro presented with generalized heart failure.
  • Clinical signs included ascites, pale/cyanotic mucous membranes, hepatomegaly, and pulmonary edema.
  • Radiography confirmed severe cardiac enlargement and fluid accumulation.

Findings:

  • Necropsy revealed serosanguineous effusions, pulmonary edema, right ventricular dilation, and left ventricular hypertrophy/dilation.
  • Histopathology showed endocardial thickening of the left atrium and ventricle due to elastic and collagen fibers.

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  • No inflammatory process was identified in the affected cardiac tissues.

    • Implications:

    • This case underscores the importance of considering EFE in young dogs with congestive heart failure.
    • Accurate diagnosis of congenital heart disease is crucial for prognosis and management.
    • Understanding the histopathological basis of EFE aids in differentiating it from other cardiac pathologies.