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29 - Abdominal Aortic Aneurysms

from Section 6 - Gastrointestinal Emergencies

Published online by Cambridge University Press:  02 November 2023

By
Payal Modi  and
Nathaniel Oz
Edited by
Kaushal Shah  and
Jarone Lee
Edited in association with
Clark G. Owyang  and
Benjamin Christian Renne
Kaushal Shah
Affiliation:
Weill Cornell Medical Center, New York
Jarone Lee
Affiliation:
Massachusetts General Hospital, Boston
Clark G. Owyang
Affiliation:
Weill Cornell Medical Center, New York
Benjamin Christian Renne
Affiliation:
Massachusetts General Hospital, Boston
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Summary

Abdominal aortic aneurysm (AAA) refers to aortic dilatations of > 3 cm. True AAA is a localized dilatation of the aorta caused by weakening of the aorta wall involving all three layers (intima, media and adventitia). False aneurysms or pseudoaneurysms typically occur at sites of vessel injury that allow blood to leak out from the arterial lumen while remaining enclosed by adventitia or surrounding soft tissue.

Keywords

AAAabdominal aortic aneurysmaortic dissectionsurgical emergencypseudoaneurysmsaortoenteric fistularruptured AAA
Type
Chapter
Information
Practical Emergency Resuscitation and Critical Care , pp. 270 - 278
Publisher: Cambridge University Press
Print publication year: 2023

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