Figure 5

Stanford and De Bakey classification of aortic dissection. The image on the left represents De Bakey I and II/Stanford A; the middle image Stanford B; the right image De Bakey IIIa and b/Stanford B. De Bakey I; -origin in ascending aorta; extends to include at least arch; -usually surgical management. De Bakey II; -originates in and is confined to ascending aorta; -usually surgical management. De Bakey IIIa; -originates in descending aorta; usually extends distally; -usually nonsurgical management De Bakey IIIb; -originates in descending aorta; extends distally below diaphragm; -usually nonsurgical management. Stanford A; -all dissections involving ascending aorta; -management usually surgical. Stanford B; -all dissections not involving ascending aorta; -management usually nonsurgical.