ArticleJournal of neurosurgery. Case lessons2025
Perianeurysmal edema after coil embolization of a giant ruptured aneurysm: illustrative case.
Article in Journal of neurosurgery. Case lessons, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
backgroundPerianeurysmal edema (PE) is a rare complication associated with treatment of intracerebral aneurysms; however, its mechanism is unclear. OBSERVATIONS: A 44-year-old woman presented with severe headache and nausea. Her imaging study showed a subarachnoid hemorrhage (Fisher group 2) due to rupture of a giant aneurysm of the left internal carotid artery. She underwent emergent coil embolization. However, she exhibited visual disturbance in her left eye that progressed a few days after the treatment. MRI revealed that the treated aneurysm developed into a partially thrombosed giant aneurysm with perifocal edema, and the mass compressed the left optic nerve. Oral prednisone was initiated, but her symptoms worsened. She finally underwent a flow diverter treatment 28 days after the endosaccular coil embolization and made a full recovery. LESSONS: The authors have reported a case of a ruptured giant aneurysm associated with PE after coil embolization. Although the mechanism of the edema remains uncertain, flow diverting stents should be considered as a potential treatment for PE following coil embolization of the aneurysm when indicated. https://thejns.org/doi/10.3171/CASE25560.
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