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Ruptured ulnar artery pseudoaneurysm

L S Erdoes1, W C Brown

  • 1Section of Vascular Surgery, University of Arizona Health Sciences Center, Tucson 85724, USA.

Annals of Vascular Surgery
|July 1, 1995
PubMed
Summary
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This case study details a rare proximal ulnar artery pseudoaneurysm rupture in an elderly woman, leading to neurological deficits. Surgical repair resulted in full recovery, highlighting unique anatomical considerations for ulnar artery lesions.

Area of Science:

  • Vascular Surgery
  • Anatomy
  • Traumatology

Background:

  • Ulnar artery aneurysms and pseudoaneurysms are uncommon vascular lesions.
  • Typically, these occur distally and present with embolic symptoms, not rupture.

Observation:

  • An elderly woman presented with acute rupture of a proximal ulnar artery pseudoaneurysm.
  • The rupture caused severe neurologic compromise due to bleeding into Guyon's canal and carpal tunnel.
  • A remote wrist fracture created an anatomical deformity predisposing to the injury.

Findings:

  • The pseudoaneurysm resulted from chronic abrasion of the ulnar artery due to volar capsule rupture and wrist deformity.
  • Emergency surgery involved pseudoaneurysm excision, ulnar artery ligation, and volar capsule repair.

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  • The patient achieved complete neurologic recovery without vascular compromise.

    • Implications:

    • This case highlights the importance of considering proximal ulnar artery pseudoaneurysms, especially with wrist deformities.
    • Surgical excision and repair are recommended to prevent recurrence.
    • Vascular reconstruction may be necessary if radial artery flow is compromised.