Guidelines for Diagnosis and Treatment of Aortic Aneurysm and Aortic Dissection (JCS 2011)

of the descending aorta. In addition, much about the relationship between aortic diseases and genetic abnormalities has become apparent, and new aspects of treatment have evolved. Chapters that address these new aspects of treatment in the present guidelines provide particularly detailed descriptions. These guidelines also indicate the difference between the interpretation of aortic dissection in Japan and that in Western countries. Accordingly, this update of the guidelines represents, in practical terms, a full-scale revision of the guidelines.