摘要
To the editor： A 44-year-old man presented to our department with intermittent chest and back pain. He had a past medical history of having undergone aortic valve replacement and ascending aortic aneurysm repair （Bentall） in the same operation 12 years ago. The Bentall operation was performed due to the diagnosis of severe aortic valve regurgitation together with an aneurysm of the ascending aorta measuring 70 mm in diameter. The diameter of the remaining aortic arch had previously been measured as 40 nnn at the time.
To the editor： A 44-year-old man presented to our department with intermittent chest and back pain. He had a past medical history of having undergone aortic valve replacement and ascending aortic aneurysm repair （Bentall） in the same operation 12 years ago. The Bentall operation was performed due to the diagnosis of severe aortic valve regurgitation together with an aneurysm of the ascending aorta measuring 70 mm in diameter. The diameter of the remaining aortic arch had previously been measured as 40 nnn at the time.
