Difference between revisions of "Aortocaval fistula"

 
(One intermediate revision by one other user not shown)
Line 6: Line 6:
 
==Clinical Features==
 
==Clinical Features==
 
*Presentation depends on origin, size, and location of fistula
 
*Presentation depends on origin, size, and location of fistula
*Signs/symptoms of [[AAA]] (abdominal/flank/back pain, shock if ruptured)
+
*Signs/symptoms of [[AAA]] ([[abdominal pain|abdominal]]/[[flank pain|flank]]/[[back pain]], [[shock]] if ruptured)
 
*[[High-output heart failure]]
 
*[[High-output heart failure]]
 
*[[Pedal edema]] (due to venous hypertension)
 
*[[Pedal edema]] (due to venous hypertension)
Line 14: Line 14:
  
 
==Differential Diagnosis==
 
==Differential Diagnosis==
 +
{{Abdominal Pain DDX Diffuse}}
  
 
==Evaluation==
 
==Evaluation==
*US to identify AAA
+
*[[Ultrasound: AAA|US]] to identify AAA
 
*CT angio
 
*CT angio
  
 
==Management==
 
==Management==
*Treat hypovolemia/shock  
+
*Treat [[hypovolemia]]/[[shock]]
 
*Emergent surgical repair
 
*Emergent surgical repair
  

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