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Related Experiment Videos

Aortic valvular dysplasia in a calf.

T D Watson1, C M Marr, I A McCandlish

  • 1Department of Veterinary Medicine, University of Glasgow Veterinary School, Bearsden.

The Veterinary Record
|October 26, 1991
PubMed
Summary

Aortic valvular dysplasia, a rare congenital heart defect, was identified in a calf. This condition involved abnormal aortic valve cusps and aortic enlargement, presenting as a neck mass and heart murmur.

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Area of Science:

  • Veterinary Cardiology
  • Congenital Abnormalities in Livestock

Background:

  • Aortic valvular dysplasia is a congenital heart abnormality.
  • This condition has not been previously documented in cattle.

Purpose of the Study:

  • To report the first diagnosed case of aortic valvular dysplasia in a calf.
  • To describe the clinical, diagnostic, and pathological findings of this condition.

Main Methods:

  • Clinical examination including auscultation and palpation.
  • Diagnostic imaging: Electrocardiography (ECG) and thoracic radiography.
  • Echocardiography for detailed valve and great vessel assessment.
  • Post-mortem examination for confirmation.

Main Results:

  • A calf presented with a pulsating neck mass, cardiac dullness, and a severe systolic murmur.
  • ECG and radiography revealed left atrial and ventricular enlargement.
  • Echocardiography identified dysplasia of two aortic valve cusps and post-stenotic dilatation of the ascending aorta.
  • Pathology confirmed the valvular dysplasia and aortic abnormalities.

Conclusions:

  • Aortic valvular dysplasia is a newly recognized congenital cardiac defect in cattle.
  • The condition can lead to significant cardiac remodeling and secondary aortic abnormalities.
  • Early diagnosis and understanding of this condition are crucial for affected animals.

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