fig2
![Open repair for thoracoabdominal aortic aneurysms precipitated by chronic aortic dissection](https://image.oaes.cc/6c9b9eb1-c6cf-423e-8998-d746c503e87e/4336.fig.2.jpg)
Figure 2. The Crawford classification scheme for describing the extent of thoracoabdominal aortic aneurysm (TAAA) repair. Extent II TAAA repairs have the greatest operative risk. The figure is used with the permission of Baylor College of Medicine.