ArticleJournal of cerebrovascular and endovascular neurosurgery2026
Postoperative rupture of an artery dissected from a cerebral aneurysm dome following clipping: A rare and fatal complication.
Article in Journal of cerebrovascular and endovascular neurosurgery, 2026. 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
The adhesion of arteries to aneurysm domes can pose significant technical challenges during surgical clipping. Dissection of these vessels carries a risk of iatrogenic wall damage and subsequent complications. We present the case of a 67-year-old woman with three unruptured intracranial aneurysms. Following successful coil embolization of a right posterior communicating artery aneurysm, surgical clipping was planned for the remaining left middle cerebral artery and anterior choroidal artery aneurysms. Intraoperatively, the M2 inferior division was found to be densely adherent to an aneurysm located at the bifurcation of the M2 superior division. After temporary clipping of the parent artery, careful dissection was performed, and the aneurysm was successfully clipped. Postoperatively, the patient failed to regain consciousness. A computed tomography scan revealed diffuse subarachnoid hemorrhage, and subsequent angiography confirmed active contrast extravasation from the dissected M2 inferior division. The family declined reoperation, and the patient subsequently expired after brain death was declared. This case illustrates that in instances of strong arterial adhesion, extreme caution is warranted during dissection. Even without evident intraoperative bleeding, subtle vessel wall injury can lead to fatal delayed rupture. Meticulous inspection and, when necessary, reinforcement of dissected arterial segments is crucial to prevent such devastating outcomes.
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