A 75-year-old man with a history of coronary artery bypass graft and ascending aorta replacement for type I dissection presented with congestive heart failure. Computed tomography (CT) revealed a voluminous pseudoaneurysm arising from the posterolateral wall of the ascending aorta, in communication with the right pulmonary artery ( Panels A and B ). Cardiac catheterization showed significant left-to-right shunt (Qp/Qs 1.4), with echocardiographic evidence of pulmonary hypertension and right ventricular dysfunction. Given the prohibitive risk of re-do surgery, he was scheduled for percutaneous treatment. Via left subclavian …
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Tarantini et al. (2016) studied this question.