扬州大学：《外科学》课程教学课件（PPT讲稿，Surgery）Chapter 34. Arterial Aneurysms

Arterial Aneurysms

Arterial Aneurysms

Definition of aneurysmWhat is an aneurysm?

Definition of aneurysm What is an aneurysm?

Aneurysms,definedas an increaseinsize ofmorethan50% of thenormalarterial diameter,may occuranywhere inthe aorta.from theaorticrootto thebifurcation08ep50s/HE27.5mm/rot375t1/1.2spO

 Aneurysms, defined as an increase in size of more than 50% of the normal arterial diameter, may occur anywhere in the aorta, from the aortic root to the bifurcation

ClassificationTrue aneurysmFalseaneurysmDissectionaneurysm

Classification  True aneurysm  False aneurysm  Dissection aneurysm

Abdominal Aortic Aneurysm(AAA)

Abdominal Aortic Aneurysm (AAA)

AlbertEinstein(1879314~1955418)E=mc2GHANA

Abdominal aortic aneurysmisnotscarceincidenceisincreasing2% of the elderly population!

 Abdominal aortic aneurysm is not scarce incidence is increasing: 2% of the elderly population!

Sep.0820Segment of the aneurysmisbelow the renal arteriesinfrarenalAAA50s/HE27.5mmVrot375:1/1.2spSegmentoftheaneurysmis37474-A6D4.50iume RenderingNoDe617abovethe renalarteriesaightgastroepiploicartTAAA（thoracoabdominal）transversecolomicarte

 Segment of the aneurysm is below the renal arteries  - infrarenal AAA   Segment of the aneurysm is above the renal arteries - TAAA (thoracoabdominal )

Etiology of AAAartherosclerosisdefect of structure in AAvessel wallInfiltration of inflammatory cellGeneticfactorabove-mentioned factor result in the damage anddegeneration of elastic and collagen fibers,inducetheformationofAAA

 artherosclerosis  defect of structure in AA vessel wall  Infiltration of inflammatory cell  Genetic factor above-mentioned factor result in the damage and degeneration of elastic and collagen fibers,induce the formation of AAA Etiology of AAA

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