Abdominal aortic aneurysm history and symptoms: Difference between revisions

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{{CMG}}; '''Associate Editor-In-Chief:''' {{CZ}}


'''Associate Editor-In-Chief:''' {{CZ}}
==Overview==
The vast majority of aneurysms are asymptomatic.  Spontaneous abdominal pain in a patient with a pulsatile epigastric mass or a known AAA may signal rupture into the retroperitoneum or leakage within the aneurysm wall.  If a patient does develop symptoms, the risk of rupture is quite high, which is why symptoms are considered an indication for surgery.


==Symptoms==
Possible symptoms include
*Low [[back pain]]
*[[Flank pain]]
*[[Abdominal pain]]
*[[Groin pain]]
*[[Pulsating abdominal mass]]


The vast majority of aneurysms are asymptomatic. The risk of rupture is high in a symptomatic aneurysm, which is therefore considered an indication for surgery. Possible symptoms include low back pain, flank pain, abdominal pain, groin pain or pulsating abdominal mass.  On physical examination, a palpable abdominal mass can be noted. Bruits can be present in case of renal or visceral arterial stenosis.
As most of the AAAs are asymptomatic, their presence is usually revealed during an abdominal examination for another reason - the most common being abdominal ultrasonography. A physician may also detect the presence of an AAA by abdominal palpation.  Note that an aneurysmal aorta may appear normal on angiogram, due to thrombus within the sac.
 
[[Image:AAA-101.jpg|right|thumb|CT image showing an abdominal aortic aneurysm.]]
As most of the AAAs are asymptomatic, their presence is usually revealed during an abdominal examination for another reason - the most common being abdominal ultrasonography. A physician may also detect the presence of an AAA by abdominal palpation. Ultrasonography provides the initial assessment of the size and extent of the aneurysm, and is the usual modality for surveillance.  Preoperative examinations include [[Computed tomography|CT]], [[MRI]] and special modes thereof, like CT/MR angiographyAngiography may be useful also, as an additional method of measurement for the planning of endoluminal repair. Note that an aneurysmal aorta may appear normal on angiogram, due to thrombus within the sac.
* Many AAAs are detected incidentally during cardiac catheterizations, computed tomography (CT), or magnetic resonance imaging (MRI) performed for unrelated reasons.
* Many AAAs are detected incidentally during cardiac catheterizations, computed tomography (CT), or magnetic resonance imaging (MRI) performed for unrelated reasons.
* Up to 50% of AAAs can be recognized on plain roentgenograms as a calcified aneurysmal wall.
* Up to 50% of AAAs can be recognized on plain roentgenograms as a calcified aneurysmal wall.
* Spontaneous abdominal pain in a patient with a pulsatile epigastric mass or a known AAA may signal rupture into the retroperitoneum or leakage within the aneurysm wall
*  
*:* This could lead to rapid expansion or imminent rupture.
*:* This could lead to rapid expansion or imminent rupture.
* Peripheral embolization to the lower extremities (common in popliteal artery aneurysms) is rare with AAAs.
* Peripheral embolization to the lower extremities (common in popliteal artery aneurysms) is rare with AAAs.

Revision as of 01:15, 28 October 2012

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor-In-Chief: Cafer Zorkun, M.D., Ph.D. [2]

Overview

The vast majority of aneurysms are asymptomatic. Spontaneous abdominal pain in a patient with a pulsatile epigastric mass or a known AAA may signal rupture into the retroperitoneum or leakage within the aneurysm wall. If a patient does develop symptoms, the risk of rupture is quite high, which is why symptoms are considered an indication for surgery.

Symptoms

Possible symptoms include

As most of the AAAs are asymptomatic, their presence is usually revealed during an abdominal examination for another reason - the most common being abdominal ultrasonography. A physician may also detect the presence of an AAA by abdominal palpation. Note that an aneurysmal aorta may appear normal on angiogram, due to thrombus within the sac.

  • Many AAAs are detected incidentally during cardiac catheterizations, computed tomography (CT), or magnetic resonance imaging (MRI) performed for unrelated reasons.
  • Up to 50% of AAAs can be recognized on plain roentgenograms as a calcified aneurysmal wall.
    • This could lead to rapid expansion or imminent rupture.
  • Peripheral embolization to the lower extremities (common in popliteal artery aneurysms) is rare with AAAs.
    • Rarely in larger or unstable aneurysms, disseminated intravascular coagulopathy may develop.

References


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