Pulmonary hypertension (PH) results from multiple disease processes and is most common in older, small-breed dogs. Clinical presentation includes cough, exercise intolerance, respiratory distress, and/or syncope. These clinical signs can be confused with a primary respiratory pathology and/or congestive heart failure. In humans, radiographic findings for PH can include patchy pulmonary edema and radiographic infiltrates. In dogs, diagnosis is made by echocardiography.
This paper indicates that an echocardiogram should be requested earlier in the diagnostic plan for dyspneic patients.
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