Safi modification of Crawford TAAA classification

The Crawford classification of TAAA is based upon the extent of aortic involvement.

Type I arises from above the sixth intercostal space, usually near the left subclavian artery, and extends to include the origins of the celiac axis and superior mesenteric arteries. Although the renal arteries can also be involved, the aneurysm does not extend into the infrarenal aortic segment.
Type II aneurysm also arises above the sixth intercostal space and may include the ascending aorta, but extends distal to include the infrarenal aortic segment, often to the level of the aortic bifurcation.
Type III aneurysm arises in the distal half of the descending thoracic aorta, below the sixth intercostal space, and extends into the abdominal aorta.
Type IV aneurysm generally involves the entire abdominal aorta from the level of the diaphragm to the aortic bifurcation.
Type V aneurysm arises in the distal half of the descending thoracic aorta, below the sixth intercostal space, and extends into the abdominal aorta, but is limited to the visceral segment.

TAAA: thoracoabdominal aortic aneurysm.

Adapted from: Safi HJ, Winnerkvist A, Miller CC 3rd, et al. Effect of extended cross-clamp time during thoracoabdominal aortic aneurysm repair. Ann Thorac Surg 1998; 66:1204.

Graphic 66037 Version 9.0

خرید پکیج

Safi modification of Crawford TAAA classification