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Persistent left cranial vena cava in a dog.

Z Yilmaz1, M Kocaturk1, J Koch2

  • 1Department of Internal Medicine, Veterinary Faculty, Bursa Uludag University, Bursa, Turkey.

The Journal of Small Animal Practice
|August 6, 2024
PubMed
Summary
This summary is machine-generated.

A golden retriever with exercise intolerance showed left ventricular systolic dysfunction. Unusual echocardiographic findings, post-systolic shortening and early systolic lengthening, may indicate this dysfunction in dogs.

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Area of Science:

  • Veterinary Cardiology
  • Canine Echocardiography
  • Congenital Cardiovascular Anomalies

Background:

  • Persistent left cranial vena cava (PLSVC) is a rare congenital anomaly in dogs.
  • Exercise intolerance can be a sign of underlying cardiac dysfunction in canine patients.

Observation:

  • A 10-year-old golden retriever presented with exercise intolerance and mild anemia.
  • Echocardiography revealed a dilated coronary sinus, suggestive of PLSVC, confirmed by agitated-saline study.
  • Left ventricular systolic dysfunction was identified using conventional parameters and global longitudinal strain analysis.

Findings:

  • Two-dimensional speckle tracking echocardiography detected post-systolic shortening and early systolic lengthening.
  • These findings suggest regional left ventricular systolic dysfunction.
  • Right ventricular parameters remained largely unchanged.

Implications:

  • Post-systolic shortening and early systolic lengthening may serve as diagnostic markers for regional left ventricular dysfunction in dogs.
  • The relationship between PLSVC and left ventricular systolic dysfunction in this case requires further investigation.
  • This case highlights the importance of advanced echocardiographic techniques in diagnosing cardiac abnormalities in veterinary medicine.