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Updated: May 9, 2026

Microsurgical Clip Obliteration of Middle Cerebral Aneurysm Using Intraoperative Flow Assessment
Published on: September 25, 2009
Simultaneous rupture of two middle cerebral artery aneurysms presented with two aneurysm-associated intracerebral
Sina Havakeshian1, Oliver Bozinov1, Jan-Karl Burkhardt1
1Department of Neurosurgery, University Hospital of Zurich, Zurich, Switzerland.
Abstract:
Simultaneous rupture of more than one intracranial aneurysm is a rare event and difficult to diagnose. In this case report, we present the case of a patient with a simultaneous rupture of two middle cerebral artery (MCA) aneurysms with two separately localized aneurysm-associated intracerebral hemorrhages (ICH). Initially, the patient presented with headache and neck stiffness as well as progressive decrease of consciousness. Computed tomography (CT) revealed a subarachnoid hemorrhage with a frontal and temporal space-occupying ICH. CT angiography demonstrated two MCA aneurysms located in adjacency to the ICHs, one located at the M1 segment and the other in the bifurcation of the left MCA. Rupture of both aneurysms was confirmed during surgery, and both aneurysms were clipped microsurgically without complications. Although rupture of one aneurysm in patients with multiple aneurysms is the most common event, this case indicates that simultaneous rupture should be kept in mind in patients with multiple aneurysms. In patients with multiple aneurysms, the identification of the ruptured aneurysm(s) is necessary to avoid leaving a ruptured aneurysm untreated.
Insights
Simultaneous rupture of multiple intracranial aneurysms is rare but possible. This case highlights the importance of identifying all ruptured aneurysms in patients with multiple aneurysms to ensure complete treatment.
Area of Science:
- Neurosurgery
- Neurology
- Radiology
Background:
- Multiple intracranial aneurysms present a diagnostic challenge.
- Simultaneous rupture of multiple aneurysms is an uncommon but critical event.
Observation:
- A patient presented with symptoms of subarachnoid hemorrhage and progressive consciousness decline.
- CT angiography revealed two adjacent middle cerebral artery aneurysms associated with separate intracerebral hemorrhages.
Findings:
- Surgical confirmation of simultaneous rupture of two middle cerebral artery aneurysms.
- Successful microsurgical clipping of both ruptured aneurysms without complications.
Implications:
- Clinicians should consider simultaneous aneurysm rupture in patients with multiple aneurysms.
- Accurate identification of all ruptured aneurysms is crucial for effective management and preventing re-bleeding.
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