Simultaneous presentation of two cerebral arterial aneurysms

Area of Science:

• Neurosurgery
• Vascular Neurology
• Cerebrovascular Diseases

Background:

• Multiple intracranial aneurysms are a known clinical entity.
• Subarachnoid hemorrhage (SAH) can cause significant hemodynamic changes.
• Carotid cavernous aneurysms represent a specific subset of vascular lesions.

Observation:

• A patient presented with a ruptured middle cerebral artery aneurysm.
• Immediately following the rupture and subsequent subarachnoid hemorrhage, an ipsilateral carotid cavernous aneurysm enlarged.
• The enlargement was directly attributed to a transient hypertensive surge post-hemorrhage.

Findings:

• This case documents a rare instance of secondary aneurysm enlargement following SAH.
• The mechanism involves acute hemodynamic shifts impacting pre-existing vascular abnormalities.
• The described phenomenon offers insights into the complex pathophysiology of multiple aneurysms.

Implications:

• Understanding this rare event is crucial for managing patients with multiple aneurysms.
• It emphasizes the importance of monitoring all intracranial aneurysms, especially after a rupture.
• This case may inform surgical and interventional strategies for complex cerebrovascular presentations.