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Q. What are symptoms of death by heartworms?

Answered By
DESTINI R. HOLLOWAY, DVM

A. Heartworm disease in dogs causes chronic coughing, lethargy, not eating, weight loss, respiratory distress and struggling to breath. Pet ultimately die from a condition called caval syndrome, where there is not enough blood being pumped to the rest of the body because the heartworms have filled the heart and will actually occlude the pulmonary (lung) artery causing severe hypertension, heart failure and sudden death.


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