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Delayed aneurysm rupture following treatment with the WEB embolization device
  1. Bradley A Gross and
  2. Michael J Lang
  1. Neurosurgery, University of Pittsburgh, Pittsburgh, Pennsylvania, USA
  1. Correspondence to Dr Bradley A Gross; grossb2{at}


Delayed rupture of an aneurysm following WEB embolization has not yet been reported. We present a case of a multiply ruptured anterior communicating artery aneurysm treated via WEB embolization. A post-treatment CT scan confirmed no evidence of rebleeding during treatment. Four hours after treatment, the patient developed an acute, significant increase in intracranial pressure with bloody ventriculostomy output, with CT scan demonstrating new parenchymal and intraventricular hemorrhage. The aneurysm was subsequently treated via microsurgical clipping that did not identify an “uncovered” bleb or rupture source.

  • aneurysm
  • subarachnoid
  • stroke
  • device

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  • Contributors Drafting the article and study supervision: BAG. Acquiring the data and patient care and reviewed submitted version of article: Both authors.

  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests BAG: Consultant for microvention and medtronic.

  • Provenance and peer review Not commissioned; externally peer reviewed.

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