True or False. Type A aortic dissection = surgery. Type B = medical treatment.

Semi-false. There are four indications for acute non-medical intervention for Type B aortic dissections.

• aortic rupture
  
• aortic expansion > 5 cm
  
• critical vessel malperfusion
  
• intractable pain

Source

Karmy-Jones, R. et al. "Descending Thoracic Aortic Dissections" Surgical Clinics of North America. 2007.