- Dog Breed Predilictions
- Myxomatous Mitral Valve Degeneration5 Topics
- Cardiomyopathies
- Canine Dilated Cardiomyopathy5 Topics
- Feline Dilated Cardiomyopathy5 Topics
- Feline Thromboembolic Disease
- Feline Hypertrophic Cardiomyopathy5 Topics
- Feline Restrictive Cardiomyopathy
- Other Feline Cardiomyopathies
- Feline Hyperthyroidism5 Topics
- Boxer Cardiomyopathy
- Canine Hypertrophic Cardiomyopathy
- Pericardial Disorders
- Pericardial Effusion6 Topics
- Constrictive Pericardial Disease
- Feline Pericardial Disease
- Bacterial Endocarditis5 Topics
- Canine Heartworm Disease6 Topics
- Feline Heartworm Disease
- Occult Heartworm Disease5 Topics
Lesson 20, Topic 3
In Progress
Diagnosis
Lesson Progress
0% Complete
- Definitive Diagnosis:
- absence of circulating microfilariae
- positive immunodiagnostic test
- Presumptive Diagnosis:
- absence of circulating microfilariae
- radiographs supportive of pulmonary artery and pulmonary parenchymal changes due to heartworm
- Radiography:
- right ventricular enlargement
- dilation of the main pulmonary artery
- enlargement, tortuosity and/or pruning of the pulmonary arteries
- pulmonary parenchymal changes of an alveolar pattern (coalescent fluffy [patchy] regions adjacent to pulmonary arteries)
- may see consolidation of lung lobes (so-called pulmonary eosinophilic granulomatosis)
- Electrocardiography:
- usually signs of right heart enlargement as described for microfilaremic heartworm disease
- Blood Work:
- Hematology: eosinophilia – common; basophilia – common
- Immunodiagnostics: IFA, ELISA, Agglutination Test
