Difference between revisions of "Aortocaval fistula"

(Created page with "==Background== ==Clinical Features== ==Differential Diagnosis== ==Evaluation== ==Management== ==Disposition== ==See Also== ==External Links== ==References== <references/>")
 
 
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==Background==
 
==Background==
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*Complication of [[abdominal aortic aneurysm]]
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*Rare (<1% of all AAAs, ~3% of ruptured AAAs) but life-threatening (mortality ~50%)
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*Caused by inflammation around aorta → adherence of aorta to vein → pressure and erosion into vein → fistula
  
 
==Clinical Features==
 
==Clinical Features==
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*Presentation depends on origin, size, and location of fistula
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*Signs/symptoms of [[AAA]] ([[abdominal pain|abdominal]]/[[flank pain|flank]]/[[back pain]], [[shock]] if ruptured)
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*[[High-output heart failure]]
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*[[Pedal edema]] (due to venous hypertension)
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*Renal insufficiency (due to reduced perfusion to kidneys)
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*[[Hematuria]]
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*Bruit
  
 
==Differential Diagnosis==
 
==Differential Diagnosis==
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{{Abdominal Pain DDX Diffuse}}
  
 
==Evaluation==
 
==Evaluation==
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*[[Ultrasound: AAA|US]] to identify AAA
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*CT angio
  
 
==Management==
 
==Management==
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*Treat [[hypovolemia]]/[[shock]]
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*Emergent surgical repair
  
 
==Disposition==
 
==Disposition==
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*Admit
  
 
==See Also==
 
==See Also==
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*[[Abdominal aortic aneurysm]]
  
 
==External Links==
 
==External Links==
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==References==
 
==References==
 
<references/>
 
<references/>
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 +
[[Category:Surgery]] [[Category:Vascular]]

Latest revision as of 16:20, 25 October 2019

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

Differential Diagnosis

Diffuse Abdominal pain

Evaluation

  • US to identify AAA
  • CT angio

Management

Disposition

  • Admit

See Also

External Links

References