Pulmonary arterial hypertension associated with the use of interferon therapy for chronic hepatitis C infection complicated by extrinsic left main coronary artery compression
Interferon‐alpha treatment is a rare cause of pulmonary arterial hypertension (PAH). We report a case of a 43‐year‐old man treated for chronic hepatitis C infection complicated by decompensated right heart failure diagnosed with PAH and external coronary artery compression secondary to a dilated pulmonary trunk. The novel complication of extrinsic coronary artery compression should be considered in PAH patients presenting with chest pain or acute coronary syndrome. Establishing a diagnosis has clinical value as pulmonary vasodilator therapy may improve symptoms.
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