A very rare complication of an Abdominal Aortic Aneurysm: Primary Aortoduodenal Fistula without gastrointestinal bleeding.
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Keywords

AAA
Aortoduodenal Fistula

How to Cite

Xhepa, S., Bejko, E., Kosovrasti, D., Sopiqoti, M., Llazo, S., Xhemali, A., Vila, F., & Xhelili, E. (2020). A very rare complication of an Abdominal Aortic Aneurysm: Primary Aortoduodenal Fistula without gastrointestinal bleeding. Albanian Journal of Trauma and Emergency Surgery, 4(1). https://doi.org/10.32391/ajtes.v4i1.80

Abstract

An abdominal aortic aneurism (AAA) is an enlargement of the lower part of the aorta that extends through the abdominal area.The diameter of the aneurismatic vessel is represented by 3 cm or more in either anterior – posterior , or transverse planes.

The developpement of Abdominal aortic aneurysm (AAA) is a complex, multifactorial process involving destructive remodeling of aortic wall connective tissue. Four interrelated factors involved in this process include: (1) chronic inflammation associated with neovascularization and increased proinflammatory cytokine production, (2) increased and dysregulated production of matrix-degrading proteinases, (3) destruction of structural matrix proteins, and (4) decreased medial smooth muscle cell (SMC) presence, resulting in impaired connective tissue repair. This understanding has developed from a characterization of human AAA tissue, as well as the use of different animal models that replicate human disease.

The  mortality of ruptured AAA is set between 40 – 70% in patients that manage to arrive alive in the emergency room,  and that of 90% in overall patients confirmed with rAAA in the autopsy results.

A ruptured abdominal aortic aneurysm (rAAA) represents a disruption of a dilated aortic wall that leads to blood outside the aortic wall.

https://doi.org/10.32391/ajtes.v4i1.80
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