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Spinal dural arteriovenous anomalies.

M M Teng1, T Chang, J F Lirng

  • 1Department of Radiology, Veterans General Hospital-Taipei, National Defense Medical Center, Taiwan, Republic of China.

Journal of Vascular and Interventional Radiology : JVIR
|May 1, 1992
PubMed
Summary
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Spinal dural arteriovenous anomalies require prompt diagnosis via imaging like myelography or MR. Embolization is often the preferred treatment, leading to clinical improvement in all reviewed cases.

Area of Science:

  • Neurology
  • Radiology
  • Vascular Surgery

Background:

  • Spinal dural arteriovenous (AV) anomalies are rare vascular malformations.
  • Diagnosis and treatment can be challenging due to their location and complexity.

Purpose of the Study:

  • To review clinical data, radiologic findings, and treatment outcomes in patients with spinal dural AV anomalies.
  • To evaluate the efficacy of different treatment modalities, particularly embolization.

Main Methods:

  • Retrospective review of 14 cases of spinal dural AV anomalies.
  • Analysis of clinical presentation, diagnostic imaging (myelography, MR imaging), and treatment procedures (embolization, surgical ligation).
  • Assessment of patient outcomes following intervention.

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Main Results:

  • All 14 patients presented with typical angiographic findings of spinal dural AV anomalies.
  • Diagnosis was primarily made through myelography (13 cases) and MR imaging (1 case).
  • Thirteen patients underwent embolization, with one requiring repeat embolization; one patient had surgical ligation. All patients showed clinical improvement post-treatment.

Conclusions:

  • Early diagnosis of spinal dural AV anomalies relies on high clinical suspicion and quality imaging (myelography or MR).
  • Embolization is a highly effective treatment of choice, with optimal outcomes achieved by occluding feeding arteries, draining veins, and the nidus.
  • Successful treatment leads to significant clinical improvement in patients with spinal dural AV anomalies.