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Case report
Spontaneous closure of a dural arteriovenous fistula
  1. Shadi Al-Afif1,
  2. Makoto Nakamura1,
  3. Friedrich Götz2,
  4. Joachim K Krauss1
  1. 1Department of Neurosurgery, Medical School Hannover, Hannover, Germany
  2. 2Institute of Diagnostic and Interventional Neuroradiology, Medical School Hannover, Hannover, Germany
  1. Correspondence to Dr Shadi Al-Afif, Department of Neurosurgery, Medical School Hannover, Carl-Neubergstr. 1, Hannover 30625, Germany; al-afif.shadi{at}mh-hannover.de

Abstract

Spontaneous closure of a dural arteriovenous fistula (dAVF) is a rare condition and only a few cases have been reported since its first description in 1976. We report delayed and progressive spontaneous closure of a dAVF after massive intracerebral hemorrhage documented by angiographic studies before and after bleeding. To our knowledge, this is the first report to document gradual closure of a dAVF by serial angiographic studies. The mechanism of spontaneous closure of dAVFs has not been fully elucidated. We suggest different factors for consideration from previously published data and show how each of these factors can influence the others.

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