Aortic aneurysms. Aortic dissection
1. Big picture
Aortic aneurysm and aortic dissection are aortic wall diseases. They are dangerous because they may remain silent until they cause rupture, dissection, tamponade, stroke, myocardial infarction, acute aortic regurgitation, mesenteric ischemia, renal ischemia, limb ischemia, or sudden death.
Think of the topic in two clinical patterns:
Aortic aneurysm = chronic dilation of a weakened aortic wall
Aortic dissection = acute tear in the aortic wall with blood splitting the media
The key exam distinction:
| Disease | Main danger | Key investigation | Key treatment logic |
|---|---|---|---|
| Aortic aneurysm | Rupture or dissection | Ultrasound / CT angiography | Surveillance or elective repair before rupture |
| Aortic dissection | Acute malperfusion, rupture, tamponade | CT angiography | Immediate BP/HR control; Type A usually surgery |
The 2024 European Society of Cardiology guidelines merged peripheral arterial and aortic disease management and emphasize diagnosis, surveillance, treatment, long-term follow-up, prevention, and multidisciplinary care for aortic disease. ([European Society of Cardiology][1])
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