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Aortic Valve and Arch Replacements in a High-Risk Patient with Essential Thrombocythemia

Reports of the clinical results of cardiac surgery in patients with Essential Thrombocythemia (ET) are rare. In addition, cases of aortic arch aneurysm in ET have not been previously reported. We present a successful aortic valve and arch replacements with the frozen elephant trunk technique using hypothermic circulatory arrest in an ET patient with grade 3 aortic regurgitation and arch aneurysms. Reducing platelet count via the administration of anagrelide and the careful balancing of antiplatelets and anticoagulants is essential in determining the outcome of surgery.