Stanford classification is used to represent which of the following?

Classification of aoic dissections: Stanford classification: Type A involve the ascending aoa independent of site of tear and distal extension. Type B dissections involve transverse and/or descending aoa without involvement of the ascending aoa. DeBakey classification: Type I dissection involves ascending to descending aoa. Type II dissection is limited to ascending or transverse aoa, without descending aoa. Type III dissection involves descending aoa only. Ref: Harrisons Principles of Medicine, 18th Edition, Chapter 248, Figure 248-4, Page 2063