Knight, James A.Bigder, Mark G.Brigido, Mauricio M.Li, YipingSteinberg, Gary K.2020-05-202020-05-202020-06Knight II, J. A., Bigder, M. G., Brigido, M. M., Li, Y., & Steinberg, G. K. (2020). Contralateral Vasospasm in an Uncomplicated Elective Anterior Communicating Artery Aneurysm Clipping. World Neurosurgery, 138, 214-217. https://doi.org/10.1016/j.wneu.2020.02.136https://hdl.handle.net/1805/22828Background 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.enPublisher Policyanterior communicating artery aneurysmcerebral vasospasmclippingArticle