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Arteriovenous fistula
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Arteriovenous fistula

Contributors: Ryan Hoefen MD, PhD
Other Resources UpToDate PubMed

Synopsis

An arteriovenous fistula is an abnormal connection between arteries and veins that may be congenital, surgically induced for hemodialysis or as a rare complication from cardiac catheterization, or acquired from traumatic penetrating injury, infection, or malignancy. Congenital arteriovenous fistulas in the brain may be associated with abnormalities of the vein of Galen. Acquired forms typically occur in lower extremities, and, with long-standing fistulas, symptoms of edema and limb ischemia can occur. Many fistulas repair spontaneously and only require observation, but surgical repair or ultrasound-guided compression is indicated for symptomatic patients.

Codes

ICD10CM:
I77.0 – Arteriovenous fistula, acquired

SNOMEDCT:
439470001 – Arteriovenous Fistula

Differential Diagnosis & Pitfalls

Best Tests

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Management Pearls

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References

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Last Updated:10/20/2020
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Arteriovenous fistula
Arteriovenous fistula : Fatigue, Edema, Unilateral leg edema
Imaging Studies image of Arteriovenous fistula
Color and spectral Doppler image of a renal transplant status post biopsy. There is a focal region of color in the lower pole with low resistance spectral waveform, consistent with arteriovenous fistula.
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