Aortic dissection begins as a tear in the aortic wall in > 95% of patients. The tear is usually transverse, extends through the intima and halfway through the media and involves ~50% of the aortic circumference. Two thirds of dissections originate in the ascending aorta, and 20% are in the proximal descending aorta.
Aortic dissection pathophysiology
Thoracic aortic aneurysm pathophysiology
Left ventricular aneurysm pathophysiology
Myocardial rupture risk factors
Aortic stenosis pathophysiology
Aortic dissection causes
Clubbing causes
Cholesterol emboli syndrome pathophysiology