Aortocaval fistula: Difference between revisions
ClaireLewis (talk | contribs) No edit summary |
No edit summary |
||
| Line 2: | Line 2: | ||
*Complication of [[abdominal aortic aneurysm]] | *Complication of [[abdominal aortic aneurysm]] | ||
*Rare (<1% of all AAAs, ~3% of ruptured AAAs) but life-threatening (mortality ~50%) | *Rare (<1% of all AAAs, ~3% of ruptured AAAs) but life-threatening (mortality ~50%) | ||
* | *Caused by inflammation around aorta → adherence of aorta to vein → pressure and erosion into vein → fistula | ||
==Clinical Features== | ==Clinical Features== | ||
| Line 27: | Line 27: | ||
==See Also== | ==See Also== | ||
*[[ | *[[Abdominal aortic aneurysm]] | ||
==External Links== | ==External Links== | ||
Revision as of 03:20, 5 September 2016
Background
- Complication of abdominal aortic aneurysm
- Rare (<1% of all AAAs, ~3% of ruptured AAAs) but life-threatening (mortality ~50%)
- Caused by inflammation around aorta → adherence of aorta to vein → pressure and erosion into vein → fistula
Clinical Features
- Presentation depends on origin, size, and location of fistula
- Signs/symptoms of AAA (abdominal/flank/back pain, shock if ruptured)
- High output cardiac failure
- Pedal edema (due to venous hypertension)
- Renal insufficiency (due to reduced perfusion to kidneys)
- Hematuria
- Bruit
Differential Diagnosis
Evaluation
- US to identify AAA
- CT angio
Management
- Treat hypovolemia/shock
- Emergent surgical repair
Disposition
- Admit