Abdominal aortic aneurysm: Difference between revisions
(Created page with "==Background== * Infrarenal diameter >3cm or >50% increase in size of diameter * Rupture Risk * <4cm: low risk for rupture * 4-5cm: 5 year risk 3-12% * >5cm: 25-41% * Ruptur...") |
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==Background== | ==Background== | ||
* Infrarenal diameter >3cm or >50% increase in size of diameter | * Infrarenal diameter >3cm or >50% increase in size of diameter | ||
| Line 13: | Line 10: | ||
Risk Factors: | Risk Factors: | ||
* Age | * Age | ||
* Prevalence is negligible in age < 50 yrs | * Prevalence is negligible in age < 50 yrs | ||
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* Family history | * Family history | ||
* HTN | * HTN | ||
==Diagnosis== | ==Diagnosis== | ||
* May be asymptomatic or abdominal/back pain | * May be asymptomatic or abdominal/back pain | ||
* Pain + AAA = rupture until proven otherwise | * Pain + AAA = rupture until proven otherwise | ||
* Acute abdomen + BP = possible rupture | * Acute abdomen + BP = possible rupture | ||
Workup | == Workup == | ||
*US (cannot see rupture) | *US (cannot see rupture) | ||
CT Noncon (if stable) | CT Noncon (if stable) | ||
==Treatment== | ==Treatment== | ||
Rupture-EMERGENT SURG/Endovasc | Rupture-EMERGENT SURG/Endovasc | ||
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-Do not lower BP if R/O rupture (chronic ok) | -Do not lower BP if R/O rupture (chronic ok) | ||
Asymptomatic-Incidental finding: f/u Vascular | Asymptomatic-Incidental finding: f/u Vascular | ||
==Source == | ==Source == | ||
Donaldson, Bessen, H-N, UpToDate | Donaldson, Bessen, H-N, UpToDate | ||
[[Category:Cards]] | [[Category:Cards]] | ||
Revision as of 07:04, 3 March 2011
Background
- Infrarenal diameter >3cm or >50% increase in size of diameter
- Rupture Risk
- <4cm: low risk for rupture
- 4-5cm: 5 year risk 3-12%
- >5cm: 25-41%
- Rupture poss at any size, most commonly >5cm
Risk Factors:
- Age
- Prevalence is negligible in age < 50 yrs
- Smoking
- Risk factor most strongly assoc with AAA
- Also promotes the rate of aneurysm growth
- Family history
- HTN
Diagnosis
- May be asymptomatic or abdominal/back pain
- Pain + AAA = rupture until proven otherwise
- Acute abdomen + BP = possible rupture
Workup
- US (cannot see rupture)
CT Noncon (if stable)
Treatment
Rupture-EMERGENT SURG/Endovasc
(do not waste time for stablization)
-T&C x 6-10U PRBCs, 4U FFP and 4U platelets
-Maintain BP high enough to keep asymptomatic end organ (like penetrating tauma)
-Do not lower BP if R/O rupture (chronic ok)
Asymptomatic-Incidental finding: f/u Vascular
Source
Donaldson, Bessen, H-N, UpToDate