Non-Bacterial Thrombotic Endocarditis of Aortic Valve due to Hypereosinophilic Syndrome.

Hypereosinophilic syndrome (HES) is a rare hematological disorder, which may present with cardiac involvement. The case is presented of a 61-year-old male patient with isolated aortic stenosis secondary to non-bacterial thrombotic endocarditis and HES. The patient underwent successful aortic valve replacement with a bioprosthesis and remained recurrence-free at the 18-month follow up. A review of the current literature is also presented and cardiac manifestations, clinical presentation and surgical issues in the care of patients with this rare condition are discussed.