[Retrosternal Giant Aortic Aneurysm;Report of Two Cases].

This is a 2-case report of successful aortic repair surgery for the retrosternal giant aortic aneurysm. Our surgical strategy is "deep hypothermia and left ventricular( LV) unloading under cardiopulmonary bypass before approaching to the aortic aneurysm" in case of possible catastrophic bleeding. Case 1, a 64-year-old woman, had a retrosternal pseudoaneurysm (80 mm) at the distal anastomosis of a Dacron graft used to replace the ascending aorta 7 years before.

[Mitral Valve Replacement with the On-X Valve].

This is a 3-case report of mitral valve replacement (MVR) with an On-X mechanical valve followed up to 10 years. Case 1(64-year-old man) and case 2 (66-year-old woman) experienced traffic accident and traumatic event, respectively, in their chronic phase after MVR. Case 1 had multiple bone fractures of the bilateral lower limbs, which was followed by systemic infection and pyogenic spondylitis.