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Related Experiment Videos

Chylothorax associated with constrictive pericarditis in a dog

S L Campbell1, S D Forrester, S A Johnston

  • 1Department of Small Animal Clinical Sciences, College of Veterinary Medicine, University of Tennessee, Knoxville 37901, USA.

Journal of the American Veterinary Medical Association
|May 15, 1995
PubMed
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Constrictive pericarditis caused chylothorax in a dog, presenting with fluid buildup and heart issues. Surgical pericardiectomy successfully treated the condition, offering a potential cure for this rare association.

Area of Science:

  • Veterinary Cardiology
  • Canine Internal Medicine

Background:

  • Chylothorax, characterized by lymphatic fluid in the chest, often indicates serious underlying conditions.
  • Constrictive pericarditis, a condition involving stiffening of the heart's outer lining, can impede cardiac function.

Observation:

  • A 6-year-old dog presented with clinical signs of hepatomegaly, jugular pulses, muffled heart sounds, and dyspnea.
  • Thoracic radiographs revealed pleural effusion, and thoracentesis confirmed chylous effusion.
  • Echocardiography and pressure measurements indicated thickened pericardium and the characteristic "square-root sign" of constrictive pericarditis.

Findings:

  • Histopathology confirmed chronic non-suppurative pericarditis.
  • Exploratory thoracotomy and pericardiectomy were performed, leading to significant clinical improvement.

Related Experiment Videos

  • Follow-up evaluations 11 months post-surgery showed normalization of physical examination, radiography, and central venous pressure.

    • Implications:

    • This case highlights constrictive pericarditis as a treatable cause of chylothorax in dogs.
    • Surgical intervention (pericardiectomy) can offer a curative outcome when constrictive pericarditis is identified.
    • Early diagnosis and surgical management are crucial for improving prognosis in dogs with chylothorax secondary to constrictive pericarditis.