-Caval Syndrome has a 50% survival with surgical removal of the heart worms
-Caval Syndrome has a 50% survival with surgical removal of the heart worms
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*Establish in '''heart''' and [[Lungs Circulatory - Pathology|pulmonary arteries]]
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*Larvae migrate through connective tissue
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*Immature adults move to caudal distal pulmonary arteries causing diffuse eosinophilic reaction in lung parenchyma, then migrate back to right ventricle
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*May cause [[Lungs Circulatory - Pathology#Embolism, thrombosis and infarction|pulmonary thromboembolism]]