Chylothorax associated with thrombosis of the cranial vena cava

Ameet Singh1, Brigitte A Brisson

  • 1Department of Clinical Studies, Ontario Veterinary College, University of Guelph, Guelph, Ontario N1G 2W1. amsingh@uoguelph.ca

Insights

Concurrent chylothorax and cranial vena caval (CrVC) thrombosis in pets is linked to jugular devices. Prompt assessment for these conditions is crucial in animals with respiratory signs.

Area of Science:

  • Veterinary Medicine
  • Cardiology
  • Internal Medicine

Background:

  • Concurrent chylothorax and cranial vena caval (CrVC) thrombosis is a rare but serious condition in veterinary medicine.
  • Identifying predisposing factors and understanding the relationship between these two conditions is essential for effective management.

Observation:

  • A review of four cases revealed that jugular device implantation was a common predisposing factor for CrVC thrombosis.
  • The thrombosis was extensive, extending from the jugular vein to the cranial aspect of the heart in all reviewed cases.

Findings:

  • Chylothorax resolved in three out of four cases following medical and/or surgical interventions.
  • The development of concurrent chylothorax and CrVC thrombosis appears to be dependent on the thrombus's extent and location.

Implications:

  • Veterinary patients with indwelling jugular devices presenting with acute respiratory distress should be evaluated for concurrent chylothorax and CrVC thrombosis.
  • This finding highlights the importance of considering device-related complications in the differential diagnosis of respiratory signs in veterinary patients.

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