**1. Classification**

Aortic dissection (AD) has been conventionally classified based on anatomical considerations (**Figure 1**).

### **1.1 Anatomical classification**

#### *1.1.1 DeBakey classification*

This classification takes into consideration the site of origin of the intimal tear and classifies AD into three types:


**Figure 1.** *Anatomical classification of aortic dissection.*
