High-output heart failure from AV fistula

Differential Diagnosis

AV Fistula Complications

• Clotting of AV fistula
• Infection of AV fistula
• Hemorrhage of AV fistula
• Vascular insufficiency from AV fistula
• AV fistula aneurysm/pseudoaneurysm
• High-output heart failure from AV fistula

See Also

• Dialysis complications

Sources

High-output heart failure from AV fistula

• Occurs when >20% of cardiac output is diverted through the access
  • Branham sign (drop in HR after temporary access occlusion) is diagnostic
  • Doppler US can accurately measure access flow rate and establish the diagnosis
  • Tx = surgical banding of the access