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Updated: Dec 26, 2025

Minimally Invasive Thumb-sized Pterional Craniotomy for Surgical Clip Ligation of Unruptured Anterior Circulation Aneurysms
Published on: August 11, 2015
Contralateral Vasospasm in an Uncomplicated Elective Anterior Communicating Artery Aneurysm Clipping
James A Knight1, Mark G Bigder1, Mauricio Mandel1
1Department of Neurosurgery and Stanford Stroke Center, Stanford University School of Medicine and Stanford Health Care, Stanford, California, USA.
Background:
Cerebral vasospasm following clipping of an unruptured aneurysm is a rare phenomenon. When it does occur, cerebral vasospasm usually occurs on the side ipsilateral to the surgical intervention.
Case Description:
A 68-year-old man underwent right-sided pterional craniotomy for clipping of an unruptured anterior communicating artery aneurysm and experienced contralateral vasospasm 5 days later.
Conclusions:
We further discuss the pathophysiology underlying vasospasm after uncomplicated craniotomy and nonhemorrhagic aneurysm clipping.
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