**1.3 Newer classification**

*Differential Diagnosis of Chest Pain*

*1.1.2 Stanford classification*

*Anatomical classification of aortic dissection.*

**Figure 1.**

**1.2 Etiological classification**

*1.2.2 Genetically mediated*

*1.2.3 Congenital cardiovascular defects*

*1.2.1 Sporadic*

*1.2.4 Traumatic*

irrespective of the origin of the intimal tear:

• Type A—Dissection involves the ascending aorta.

emergency, whereas type B can be managed conservatively.

• Type B—Dissection spares the ascending aorta.

This classification takes into consideration involvement of the ascending aorta

Stanford classification is widely used to drive further decision-making and management as any involvement of the ascending aorta (type A) is a surgical

Aortic dissection can also be classified based on etiological considerations.

Not associated with any known congenital or genetically mediated syndromes.

Associated with known genetic syndromes like Marfan's syndrome, Ehlers-

Bicuspid aortic valve, coarctation of aorta, and annuloaortic ectasia.

Prior cardiac surgery, blunt injury, and cardiac catheterization.

Danlos syndrome, Turner syndrome, and Loeys-Dietz syndrome.

**64**

With advancement of treatment approach in cases previously managed conservatively, especially with endovascular interventions, recent classifications have taken into consideration other factors like, the duration of symptom onset, evolution of complications, and extent of involved segments.
