Right Ventricular Apical Obstruction in a Patient with Hypereosinophilia: Löffler Endocarditis
Heart & lung(2015)
Abstract
Idiopathic hypereosinophilic syndrome (HES) is a rare leukoproliferative systemic disorder characterized by sustained overproduction of eosinophils and poor prognosis. A case that a 67-year-old man with persistent symptoms of heart failure due to cardiac involvement in idiopathic HES is concentrated on. Echocardiography revealed the marked endocardial thickening of both ventricles with an apical obstruction of the right ventricle. Medical therapy, including low dose dopamine and furosemidum, was initiated with corticosteroids, imatinib and hydroxycarbamide. Remission of symptoms had persisted for only 3 weeks. As the count of eosinophils rebounded, the patient suffered with refractory heart failure, severe hypoxemia and acute renal insufficiency, eventually died 62 days after his hospitalization. The rechecking of his last MRI showed thrombus both in right atrium and superior vena cava, which indicated that he might have died of pulmonary embolism, besides the refractory heart failure and multiple organ failure.
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Key words
Idiopathic hypereosinophilic syndrome,Endocarditis,Endocardial thickening,Thrombus,Corticosteroids,Imatinib
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