High-output heart failure from AV fistula

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Background

Clinical Features

Differential Diagnosis

Workup

Management

Disposition

See Also

External Links

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
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