Arterial dissection
Updates to Article Attributes
Body
was changed:
Arterial dissection occurs when blood enters the media through a tear or ulcer in the intima and tracks along the media, forming a second blood-filled channel within the wall. The normal lumen lined by intima is called the true lumen and the blood-filled channel in the media is called the false lumen. The false lumen is at a higher pressure than the true lumen due to poor outflow.
Causes
In most cases the vessel wall is abnormal.
- hypertension3 (pathogenesis: medial degeneration)
- inherited connective tissue disorders (pathogenesis: medial degeneration)
- atherosclerosis (pathogenesis: penetrating ulcer)
-
vasculitides (pathogenesis: inflammation)
- e.g. Behcet disease
- pregnancy (pathogenesis: unknown)
- iatrogenic: aortic cathterisation, intra-aortic balloon pump
- relapsing polychondritis (rare): pathogenesis?
Locations
-<a href="/articles/hypertension">hypertension</a> (pathogenesis: medial degeneration)</li>- +<a href="/articles/hypertension">hypertension</a> <sup>3</sup> (pathogenesis: medial degeneration)</li>
References changed:
- 3. Ince H, Nienaber CA. Diagnosis and management of patients with aortic dissection. Heart. 2005;93 (2): 266-70. doi:10.1136/hrt.2005.078550 - Free text at pubmed - Pubmed citation