Arteriovenous fistula complication following MRI

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Creating Radio-cephalic Arteriovenous Fistula in the Forearm with a Modified No-Touch Technique
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Danielle Kirkman1, Naushad Junglee, Paul Mullins

  • 1School of Sport, Health and Exercise Sciences, Bangor University, Bangor, Gwynedd, UK.

BMJ Case Reports
|August 29, 2012
PubMed

Insights

Health professionals should monitor patients with arteriovenous fistulas during MRI scans. Magnetic Resonance Imaging (MRI) may cause vascular access complications, necessitating careful observation post-procedure.

Area of Science:

  • Nephrology
  • Radiology
  • Vascular Surgery

Background:

  • Vascular access is crucial for hemodialysis patients.
  • Arteriovenous fistulas are common vascular access points.
  • Medical imaging procedures carry potential risks for vascular access.

Observation:

  • A hemodialysis patient experienced pain, swelling, and bruising around a radiocephalic fistula after an MRI scan.
  • Similar symptoms recurred during a subsequent MRI scan three months later.
  • Juxta-anastomotic venous stenosis was identified after the second MRI, though a direct causal link was uncertain.

Findings:

  • Magnetic Resonance Imaging (MRI) may induce complications in arteriovenous fistulas.
  • Potential mechanisms include radiofrequency-induced currents or peripheral nerve stimulation.
  • These observations highlight a previously undocumented risk associated with MRI in this patient population.

Implications:

  • Increased awareness among healthcare providers regarding MRI risks for patients with arteriovenous fistulas.
  • The need for vigilant patient and fistula monitoring following MRI scans.
  • Further research may be warranted to elucidate the precise mechanisms and establish safety guidelines.

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